Part of speech:
A person standing by to take the place of another if necessary; substitute
One that replaces, especially a person assigned to a vacant military position.
An auxiliary person or thing
(Comput.) The act or an instance of backing up computer data, files, etc.
A second helping of something to eat
A person or thing ready to serve or be put into service on an emergency basis or as a substitute
A submarine sandwich.
A German submarine in service during WWI or WWII
Any person who learns the duties of another so as to serve as a substitute
Substitute is defined as a person or thing acting in place of something else.
(Psychiatry) A substitute figure, esp. a person of some authority, who replaces a father or mother in one's feelings
A person or thing that fills a vacancy or gap, often temporarily
To fill sufficiently; satisfy:
An airplane designed for dropping bombs
A person noted for feats of courage or nobility of purpose, especially one who has risked or sacrificed his or her life:
A sandwich made with a long roll sliced horizontally and filled with various sliced meats, cheeses, and vegetables
A grilled, pressed sandwich of Cuban origin, consisting of ham, roasted pork, cheese, pickles, and often mustard on a long, crusty roll.
A sandwich consisting of a long roll split lengthwise and filled with sliced meat such as ham or salami, cheese such as provolone or mozzarella, and often onions, peppers, tomatoes, pickles, and olives.
A sandwich made on a long roll split lengthwise
Any of various submarine explosive devices, especially a submarine mine.
A piece of material, such as metal or wood, thick at one edge and tapered to a thin edge at the other for insertion in a narrow crevice, used for splitting, tightening, securing, or levering.
Find another word for sub. In this page you can discover 34 synonyms, antonyms, idiomatic expressions, and related words for sub, like: alternate, replacement, auxiliary, backup, below, second, standby, submarine, u-boat, under and understudy.