The meaning of SUBSTITUTE is a person or thing that takes the place or function of another. How to use substitute in a sentence.

SUBSTITUTE definition: 1. to use something or someone instead of another thing or person: 2. to perform the same job as…. Learn more.

Define substitute. substitute synonyms, substitute pronunciation, substitute translation, English dictionary definition of substitute. n. 1. One that takes the place of another: finding substitutes for …

In team games such as football, a substitute is a player who is brought into a match to replace another player. Coming on as a substitute, he scored four crucial goals.

Definition of substitute noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

a person or thing serving in place of another: [countable] The coach sent in a substitute when his star player was injured. [uncountable] For most of us there is simply no substitute for hard work.

Feb 23, 2026 · Noun substitute (plural substitutes) A replacement or stand-in for something that achieves a similar result or purpose.

Substitute definition: One that takes the place of another; a replacement.

Substitute generally refers to a person or thing acting as a replacement for another.

In chem., to replace (an atom or group) in the molecule of a compound by another atom or group. See substituent. Put in the place or performing the functions of another; substituted.