(Intransitive) To become darker or more intense
Compound means to mix multiple ingredients together or make something bigger.
To increase the contrast of (a photographic image).
To cause to rise:
To stir up; instigate:
Increase is defined as to become bigger or greater.
To add vitamins, minerals, etc. to (bread, flour, etc.) so as to increase the nutritional value
To lift up; raise
To increase; raise:
(Electronics) To increase the strength of (an electrical signal) by means of an amplifier
The definition of aggravate means to make worse or to annoy.
To focus attention on; accentuate:
To raise; elevate.
(Intransitive) To grow strong or stronger.
Find another word for heightens. In this page you can discover 21 synonyms, antonyms, idiomatic expressions, and related words for heightens, like: deepens, compounds, intensifies, rises, sharpens, raises, enhances, lifts, increases, expands and enriches.