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
A submarine sandwich.
A German submarine in service during WWI or WWII
(Comput.) The act or an instance of backing up computer data, files, etc.
A person or thing ready to serve or be put into service on an emergency basis or as a substitute
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
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.
A second helping of something to eat
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:
Find another word for sub. In this page you can discover 37 synonyms, antonyms, idiomatic expressions, and related words for sub, like: under, alternate, replacement, auxiliary, below, submarine, u-boat, backup, standby, understudy and stand-in.