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Harden synonyms

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To make hard, strong, or obdurate; strengthen:
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  1. To make hard, strong, or obdurate; strengthen:
  2. Any of various hard, strong, flexible alloys of iron and carbon. Often, other metals are added to give steel a particular property, such as chromium and nickel to make it stainless. Steel is widely used in many kinds of tools and as a structural material in building.
  3. To cover, plate, edge, or point with steel.
To modify by the addition of a moderating element; moderate:
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  1. To modify by the addition of a moderating element; moderate:
  2. To harden or strengthen (metal or glass) by application of heat or by heating and cooling.
  3. To bring to the proper texture, consistency, hardness, etc. by mixing with something or treating in some way
(Obs.) To fire or glaze, as in a kiln
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  1. (Obs.) To fire or glaze, as in a kiln
  2. To subject (glass or metal) to a process of heating and slow cooling in order to toughen and reduce brittleness.
  3. To heat (glass, metals, etc.) and then cool, sometimes slowly, to prevent brittleness
  1. To concentrate; consolidate.
  2. To make solid; convert into a solid body.
  3. To become solid:
To transform a metal into a mineral by oxidation.
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  1. To transform a metal into a mineral by oxidation.
  2. To convert (a metal) into an ore, as by oxidation
  3. To impregnate (water, etc.) with minerals
To become vitreous.
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  1. To become vitreous.
  2. To change into glass or a glasslike substance, as by fusion due to heat; make or become vitreous
(Meteorol.) To condense and fall to the ground as rain, snow, sleet, etc.
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  1. (Meteorol.) To condense and fall to the ground as rain, snow, sleet, etc.
  2. To cause the separation of a suspended liquid or solid from a gas
  3. (Meteorology) To cause (a form of water, as rain or snow) to fall from the air.
To take on a definite, precise, and usually permanent form.
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  1. To take on a definite, precise, and usually permanent form.
  2. To cause to form crystals or assume a crystalline structure.
  3. To give a definite, precise, and usually permanent form to:
To frighten or discourage by cool behavior, unfriendliness, etc.
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  1. To frighten or discourage by cool behavior, unfriendliness, etc.
  2. To cause to form into ice; harden or solidify by cold
  3. To cause to congeal or stiffen from extreme cold:
To join together into one; unite; combine
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  1. To join together into one; unite; combine
  2. To unite or blend with another metal. Used of mercury.
  3. To mix or alloy (a metal) with mercury.
To become coagulated
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  1. To become coagulated
  2. To become coagulated:
  3. To cause transformation of (a liquid or sol, for example) into or as if into a soft, semisolid, or solid mass.
To fill or cover with or as if with clots.
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  1. To fill or cover with or as if with clots.
  2. A soft insoluble mass formed when blood or lymph gels. During blood clotting, white blood cells, red blood cells, platelets, and various clotting factors interact in a cascade of chemical reactions initiated by a wound. When a body tissue is injured, calcium ions and platelets act on prothrombin to produce the enzyme thrombin. Thrombin then catalyzes the conversion of the protein fibrinogen into fibrin, a fibrous protein that holds the clot together. An abnormal clot inside the blood vessels or the heart (a thrombus or an embolus ) can obstruct blood flow.
  3. To cause to clot or form into a mass.
To become granular or grainy.
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  1. To become granular or grainy.
  2. To segment into tiny grains or particles.
  3. To form into grains or granules
To solidify or coagulate:
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  1. To solidify or coagulate:
  2. To cause to come together to form a whole or produce a result:
  3. To cause to solidify or coagulate:
To convert (a membrane or cartilage, for example) into bone.
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  1. To convert (a membrane or cartilage, for example) into bone.
  2. To settle or fix rigidly in a practice, custom, attitude, etc.
  3. To change into bone; become bony.
To paralyze or make numb, as with fear; stupefy; stun
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  1. To paralyze or make numb, as with fear; stupefy; stun
  2. To cause to lose vitality or become impervious to change; deaden:
  3. To replace the normal cells of (organic matter) with silica or other mineral deposits; re-form as a stony substance
To stiffen with starch.
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  1. To stiffen with starch.
  2. Any of various substances, including natural starch, used to stiffen fabrics.
  3. A carbohydrate that is the chief form of stored energy in plants, especially wheat, corn, rice, and potatoes. Starch is a mixture of two different polysaccharides built out of glucose units, and forms a white, tasteless powder when purified. It is an important source of nutrition and is also used to make adhesives, paper, and textiles.
To be prepared, preserved, or finished by a chemical or physical process:
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  1. To be prepared, preserved, or finished by a chemical or physical process:
  2. To process (tobacco, leather, etc.), as by drying or aging
  3. To undergo curing, preserving, or processing
To expose (oneself) to the rays of the sun, a lamp, etc.
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  1. To expose (oneself) to the rays of the sun, a lamp, etc.
  2. To cook (food) with dry heat, especially in an oven.
  3. To become dry and hard in the sun
To preserve (meat or other foods, for example) by extracting the moisture.
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  1. To preserve (meat or other foods, for example) by extracting the moisture.
  2. (Intransitive, figuratively) To cease or cause to cease.
  3. To become dry:
To level to the ground
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  1. To level to the ground
  2. To knock down; lay low:
  3. To become flat or flatter.
To become cemented.
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  1. To become cemented.
  2. To join or unite with or as with cement
  3. To cover or coat with cement.
To consolidate; combine.
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  1. To consolidate; combine.
  2. To press or join firmly together:
  3. To be capable of being pressed tightly together or to become so pressed:
To combine into a single whole; merge; unite
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  1. To combine into a single whole; merge; unite
  2. To make strong or secure; strengthen:
  3. To unite into one system or whole; combine:
To collect or focus (one's thoughts, efforts, etc.)
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  1. To collect or focus (one's thoughts, efforts, etc.)
  2. To increase the strength and diminish the bulk of, as of a liquid or an ore; to intensify, by getting rid of useless material; to condense; -- opposed to dilute.
  3. (Intransitive) To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force.
To expose oneself or itself to the sun.
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  1. To expose oneself or itself to the sun.
  2. Often Sun. A medium-sized, main-sequence star located in a spiral arm of the Milky Way galaxy, orbited by all of the planets and other bodies in our solar system and supplying the heat and light that sustain life on Earth. Its diameter is approximately 1,392,000 million km (865,000 mi), and its mass, about 330,000 times that of Earth, comprises more than 99 percent of the matter in the solar system. It has a temperature of some 5.7 million degrees C (28.3 million degrees F) at its core, where nuclear fusion produces tremendous amounts of energy, mainly through the series of reactions known as the proton-proton chain . The energy generated in the core radiates through a radiation zone to an opaque convection zone, where it rises to the surface through convection currents of the Sun's plasma. The Sun's surface temperature (at its photosphere ) is approximately 6,200 degrees C (11,200 degrees F). Turbulent surface phenomena analogous to the Earth's weather are prevalent, including magnetic storms, sunspots, and solar flares. The Sun was formed along with the rest of the solar system about 4.5 billion years ago and is expected to run out of its current hydrogen fuel in another 5 billion years, at which point it will develop into a red giant and ultimately into a white dwarf.
  3. To expose to the sun's rays; warm, dry, bleach, tan, etc. in or as in the sunlight
To illuminate or cause to resemble fire, as in color:
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  1. To illuminate or cause to resemble fire, as in color:
  2. To become ignited; flame up:
  3. To bake or dry by heating, as in a kiln:
To make outmoded or inflexible with time; antiquate.
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  1. To make outmoded or inflexible with time; antiquate.
  2. (Figuratively, by extension, intransitive) to become inflexible or outmoded
  3. To change into a fossil or fossils; petrify
To preserve (foods) by removing the moisture.
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  1. To preserve (foods) by removing the moisture.
  2. To become dry; dry out.
  3. To remove the moisture from something or dry it thoroughly. &diamf3; A desiccator is a container that removes moisture from the air within it. &diamf3; A desiccator contains a desiccant, a substance that traps or absorbs water molecules. Some desiccants include silica gel (silicon dioxide), calcium sulfate (dehydrated gypsum), calcium oxide (calcined lime), synthetic molecular sieves (porous crystalline aluminosilicates), and dried clay.
To make hard like brass.
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  1. To make hard like brass.
  2. To join (metals) by melting nonferrous metals or alloys into the joints at temperatures exceeding 800°F (426.7°C)
  3. To solder (two pieces of metal) together using a hard solder with a high melting point.
To treat rubber with heat and (usually) sulphur to harden it and make it more durable.
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  1. To treat rubber with heat and (usually) sulphur to harden it and make it more durable.
  2. To subject to vulcanization
  3. To improve the strength, resiliency, and freedom from stickiness and odor of (rubber, for example) by combining with sulfur or other additives in the presence of heat and pressure.
To make or become callous.
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  1. To make or become callous.
To grow hard; harden.
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  1. To grow hard; harden.
  2. To cause to be firmly established
  3. To become firmly fixed or established.
An accumulation or layer of solid material, either consolidated or unconsolidated, left or laid down by a natural process. Deposits include sediments left by water, wind, ice, gravity, volcanic activity, or other agents. A layer of coal formed over many years through the decomposition of plant material is also a deposit.
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  1. An accumulation or layer of solid material, either consolidated or unconsolidated, left or laid down by a natural process. Deposits include sediments left by water, wind, ice, gravity, volcanic activity, or other agents. A layer of coal formed over many years through the decomposition of plant material is also a deposit.
  2. To cause (sand, sediment, etc.) to settle or form by a natural process
  3. To lay down or leave behind by a natural process:
(Intransitive) To have sugar crystals form in or on.
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  1. (Intransitive) To have sugar crystals form in or on.
  2. To cook, preserve, saturate, or coat with sugar or syrup:
  3. (Intransitive) To be formed into candy; to solidify in a candylike form or mass.
To make or become tough or tougher
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  1. To make or become tough or tougher
  2. (Intransitive) To become tough.
To convert inorganic carbon or nitrogen into stable, organic compounds that can be assimilated into organisms. Photosynthetic organisms such as green plants fix carbon in carbohydrates as food; certain bacteria fix nitrogen as ammonia that can be absorbed directly or through nitrification by plant roots.
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  1. To convert inorganic carbon or nitrogen into stable, organic compounds that can be assimilated into organisms. Photosynthetic organisms such as green plants fix carbon in carbohydrates as food; certain bacteria fix nitrogen as ammonia that can be absorbed directly or through nitrification by plant roots.
  2. To convert a substance, especially a gas, into solid or liquid form by chemical reactions.
  3. To restore to proper condition or working order; repair:
To harden; solidify.
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  1. To harden; solidify.
  2. To form into a mass; solidify
  3. To build, treat, or cover with hard, strong conglomerate construction material.
To thicken, as by evaporation; condense
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  1. To thicken, as by evaporation; condense
  2. To undergo thickening or cause to thicken, as by boiling or evaporation; condense.
To form a crust
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  1. To form a crust
  2. To cover or coat with or as if with a crust:
  3. To decorate by inlaying or overlaying with a contrasting material:
To become stone or stony.
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  1. To become stone or stony.
  2. To convert into stone or stony material; to petrify.
  3. To turn into stone
  1. To concentrate; consolidate.
  2. To make or become solid, firm, hard, compact, etc.
  3. (Intransitive) To become solid; to freeze.
To solidify or coagulate:
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  1. To solidify or coagulate:
  2. To cause to solidify or coagulate:
  3. To cause to come together to form a whole or produce a result:
To cause to become firm or gelatinous:
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  1. To cause to become firm or gelatinous:
  2. To take shape or become clear; crystallize:
  3. To become or cause to become somewhat firm, as gelatin does; set
To arrange or establish definitely; set
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  1. To arrange or establish definitely; set
  2. To correct or set right; adjust:
  3. To arrange properly or in a certain way; set in order; adjust
To become more stable or composed; stop fluctuating or changing
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  1. To become more stable or composed; stop fluctuating or changing
  2. To discontinue moving and come to rest in one place:
  3. To end or resolve (a dispute, for example) by making a decision or coming to an agreement.
To paralyze or make numb, as with fear; stupefy; stun
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  1. To paralyze or make numb, as with fear; stupefy; stun
  2. To replace the normal cells of (organic matter) with silica or other mineral deposits; re-form as a stony substance
  3. To cause to lose vitality or become impervious to change; deaden:
To convert (a membrane or cartilage, for example) into bone.
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  1. To convert (a membrane or cartilage, for example) into bone.
  2. To settle or fix rigidly in a practice, custom, attitude, etc.
  3. To become set in a rigidly conventional pattern:
(Intransitive) To freeze on the surface.
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To change into a fossil or fossils; petrify
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  1. To change into a fossil or fossils; petrify
  2. To make outmoded or inflexible with time; antiquate.
  3. (Figuratively, by extension, intransitive) to become inflexible or outmoded
A soft insoluble mass formed when blood or lymph gels. During blood clotting, white blood cells, red blood cells, platelets, and various clotting factors interact in a cascade of chemical reactions initiated by a wound. When a body tissue is injured, calcium ions and platelets act on prothrombin to produce the enzyme thrombin. Thrombin then catalyzes the conversion of the protein fibrinogen into fibrin, a fibrous protein that holds the clot together. An abnormal clot inside the blood vessels or the heart (a thrombus or an embolus ) can obstruct blood flow.
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  1. A soft insoluble mass formed when blood or lymph gels. During blood clotting, white blood cells, red blood cells, platelets, and various clotting factors interact in a cascade of chemical reactions initiated by a wound. When a body tissue is injured, calcium ions and platelets act on prothrombin to produce the enzyme thrombin. Thrombin then catalyzes the conversion of the protein fibrinogen into fibrin, a fibrous protein that holds the clot together. An abnormal clot inside the blood vessels or the heart (a thrombus or an embolus ) can obstruct blood flow.
  2. To fill or cover with or as if with clots.
  3. To cause to clot or form into a mass.
To cover or fill with a thick layer, as of compacted matter:
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  1. To cover or fill with a thick layer, as of compacted matter:
  2. To become formed into a compact or crusty mass:
  3. To form into a hard mass or a crust; solidify or encrust
To put in a certain physical position
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  1. To put in a certain physical position
  2. (Sports) To pass (a volleyball), usually with the fingertips, in an arc close to the net so that a teammate can drive it over the net.
  3. To incite to hostile feeling or action:
To make or become firm. Often used with up.
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  1. To make or become firm. Often used with up.
  2. Without wavering; resolutely:
To become congealed or lumpy:
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  1. To become congealed or lumpy:
  2. To cause a liquid to spoil and form clumps so that it no longer flows smoothly
  3. (Intransitive) To form curds so that it no longer flows smoothly; to cause to form such curds. (usually said of milk)
To become coagulated
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  1. To become coagulated
  2. To cause transformation of (a liquid or sol, for example) into or as if into a soft, semisolid, or solid mass.
  3. To become coagulated:
To bring to an end; terminate:
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  1. To bring to an end; terminate:
  2. To come to an end; finish:
  3. To draw or bind together the edges of:
To enter into by contract; establish or settle by formal agreement:
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  1. To enter into by contract; establish or settle by formal agreement:
  2. To become reduced in size by or as if by being drawn together, as the pupil of the eye.
  3. To hire (a person, business, etc.) to perform under contract
To accustom or become accustomed to a new environment or situation; adapt.
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  1. To accustom or become accustomed to a new environment or situation; adapt.
  2. To accustom or become accustomed to a different climate, environment, or circumstances, as by physiological or psychological changes
To adapt oneself, especially to environmental or climatic changes.
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  1. To adapt oneself, especially to environmental or climatic changes.
  2. To become acclimated or adapted.
  3. To make used to a new climate or one that is different from that which is natural; to inure or habituate to other circumstances; to adapt to the peculiarities of a foreign or strange climate.
To grow hard; harden.
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  1. To grow hard; harden.
  2. To cause to be firmly established
  3. To become firmly fixed or established.
To accustom by frequent repetition or prolonged exposure.
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  1. To accustom by frequent repetition or prolonged exposure.
  2. To cause physiological or psychological habituation, as to a drug.
  3. (Psychology) To experience habituation.
To habituate to something undesirable, especially by prolonged subjection; accustom:
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  1. To habituate to something undesirable, especially by prolonged subjection; accustom:
  2. To become used to.
  3. To come into use or take effect
To become seasoned, as wood by drying
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  1. To become seasoned, as wood by drying
  2. To treat or dry (lumber, for example) until ready for use; cure.
  3. One of four natural divisions of the year—spring, summer, autumn, and winter—in temperate zones. Each season has its own characteristic weather and lasts approximately three months. The change in the seasons is brought about by the shift in the angle at which the Sun's rays strike the Earth. This angle changes as the Earth orbits in its yearly cycle around the Sun due to the tilt of the Earth's axis. For example, when the northern or southern hemisphere of the Earth is at an angle predominantly facing the Sun and has more daylight hours of direct, overhead sunlight than nighttime hours, it is in its summer season; the opposite hemisphere is in then opposite condition and is in its winter season.
To punish in order to gain control or enforce obedience.
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  1. To punish in order to gain control or enforce obedience.
  2. To impose order on:
  3. To train by instruction and practice, as in following rules or developing self-control:
To make familiar by use; to cause to accept; to habituate, familiarize, or inure; -- with to.
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  1. To make familiar by use; to cause to accept; to habituate, familiarize, or inure; -- with to.
  2. To familiarize, as by constant practice, use, or habit:
To give or undergo a course of training:
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  1. To give or undergo a course of training:
  2. To subject to certain action, exercises, etc. in order to bring to a desired condition
  3. To prepare physically, as with a regimen:
To make more coarse.
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To make or become rough
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  1. To make or become rough
  2. (Intransitive) To become rough.
To be felt or remembered because of emotional intensity:
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  1. To be felt or remembered because of emotional intensity:
  2. To cause to be felt or remembered because of emotional intensity:
  3. To become dried up or withered.
To make bitter in flavor.
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  1. To make bitter in flavor.
  2. To arouse bitter feelings in:
  3. To cause to be bitter.
To come to have gradually; acquire:
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  1. To come to have gradually; acquire:
  2. To process (a photosensitive medium such as exposed film) in order to produce a photographic image.
  3. To improve the quality of; refine:
(Intransitive) To grow strong or stronger.
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  1. (Intransitive) To grow strong or stronger.
  2. To animate; to give moral strength to; to encourage; to fix in resolution; to hearten.
  3. To become strong or stronger.
To treat cruelly or harshly.
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  1. To treat cruelly or harshly.
  2. To treat in a brutal way
  3. To become brutal
To dull the edge of (a knife, for example).
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  1. To dull the edge of (a knife, for example).
  2. To develop a dull edge or point
  3. To become blunt:
To make or become dull.
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  1. To make or become dull.
To embitter.
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  1. To embitter.
  2. To put venom or poison on or into; make poisonous
  3. To fill with hate; embitter
To make or become numb.
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  1. To make or become numb.
  2. To cause to become numb.
To bring into a state of stupor; stun; make dull or lethargic
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  1. To bring into a state of stupor; stun; make dull or lethargic
  2. To amaze; astonish:
  3. To cause (someone) to be unable to think clearly or be sensitive to the surroundings; daze:
To deaden the mind, will, or feelings of
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  1. To deaden the mind, will, or feelings of
  2. To make numb, especially by cold.
  3. To render senseless or inactive, as from shock or boredom:
To overpower or bewilder as by a loud noise or explosion
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  1. To overpower or bewilder as by a loud noise or explosion
  2. To daze or render senseless, as by a blow or loud noise.
  3. To stupefy, as with the emotional impact of an experience; astound.
To impair the progress or functioning of; make inoperative or powerless:
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  1. To impair the progress or functioning of; make inoperative or powerless:
  2. To affect with paralysis; cause to be paralytic.
To make hard, strong, or obdurate; strengthen:
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  1. To make hard, strong, or obdurate; strengthen:
  2. Any of various hard, strong, flexible alloys of iron and carbon. Often, other metals are added to give steel a particular property, such as chromium and nickel to make it stainless. Steel is widely used in many kinds of tools and as a structural material in building.
  3. To cover or edge with steel
To cover or fill with a thick layer, as of compacted matter:
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  1. To cover or fill with a thick layer, as of compacted matter:
  2. To form into a hard mass or a crust; solidify or encrust
  3. To become formed into a compact or crusty mass:
To make of, or cover with, concrete
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  1. To make of, or cover with, concrete
  2. To form into a mass; solidify
  3. To build, treat, or cover with hard, strong conglomerate construction material.
To solidify or coagulate:
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  1. To solidify or coagulate:
  2. To cause to solidify or coagulate:
  3. To cause to come together to form a whole or produce a result:
(Intransitive, figuratively) To cease or cause to cease.
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  1. (Intransitive, figuratively) To cease or cause to cease.
  2. To preserve (meat or other foods, for example) by extracting the moisture.
  3. To become dry:
To cause to be firmly established
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  1. To cause to be firmly established
  2. To grow hard; harden.
  3. To become firmly fixed or established.
To paralyze or make numb, as with fear; stupefy; stun
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  1. To paralyze or make numb, as with fear; stupefy; stun
  2. To replace the normal cells of (organic matter) with silica or other mineral deposits; re-form as a stony substance
  3. To cause to lose vitality or become impervious to change; deaden:
To restore to a proper and normal state when dislocated or broken:
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  1. To restore to a proper and normal state when dislocated or broken:
  2. To put in a specified position or arrangement; place:
  3. To apply jewels to; stud:
  1. To concentrate; consolidate.
  2. To make or become solid, firm, hard, compact, etc.
  3. To become solid:
To make firmer; strengthen:
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  1. To make firmer; strengthen:
  2. To prove the truth, validity, or authenticity of; verify
  3. To support or establish the certainty or validity of; verify:
To support; corroborate
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  1. To support; corroborate
  2. To give emotional, moral, or mental strength to; encourage:
  3. To strengthen and secure (a position) with fortifications.
To become strong or stronger.
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  1. To become strong or stronger.
  2. To make strong or stronger; to add strength to; to increase the strength of; to fortify; to reinforce.
  3. To animate; to give moral strength to; to encourage; to fix in resolution; to hearten.
To accustom or become accustomed to a new environment or situation; adapt.
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  1. To accustom or become accustomed to a new environment or situation; adapt.
  2. To accustom or become accustomed to a different climate, environment, or circumstances, as by physiological or psychological changes
To adapt oneself, especially to environmental or climatic changes.
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  1. To adapt oneself, especially to environmental or climatic changes.
  2. To become acclimated or adapted.
  3. To make used to a new climate or one that is different from that which is natural; to inure or habituate to other circumstances; to adapt to the peculiarities of a foreign or strange climate.
(By extension) To make insensitive to hardship
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  1. (By extension) To make insensitive to hardship
  2. To harden the surface or case of (iron or steel) by high-temperature shallow infusion of carbon followed by quenching.
  3. (Metallurgy) To form a hard, thin surface on (an iron alloy)
To grow hard; harden.
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  1. To grow hard; harden.
  2. To cause to be firmly established
  3. To become firmly fixed or established.
To become seasoned, as wood by drying
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  1. To become seasoned, as wood by drying
  2. To treat or dry (lumber, for example) until ready for use; cure.
  3. One of four natural divisions of the year—spring, summer, autumn, and winter—in temperate zones. Each season has its own characteristic weather and lasts approximately three months. The change in the seasons is brought about by the shift in the angle at which the Sun's rays strike the Earth. This angle changes as the Earth orbits in its yearly cycle around the Sun due to the tilt of the Earth's axis. For example, when the northern or southern hemisphere of the Earth is at an angle predominantly facing the Sun and has more daylight hours of direct, overhead sunlight than nighttime hours, it is in its summer season; the opposite hemisphere is in then opposite condition and is in its winter season.
To make or become tough or tougher
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  1. To make or become tough or tougher
  2. (Intransitive) To become tough.
Find another word for harden. In this page you can discover 141 synonyms, antonyms, idiomatic expressions, and related words for harden, like: steel, temper, anneal, solidify, mineralize, vitrify, precipitate, hornify, cornify, crystallize and freeze.