(transitive) To use in place of something else, with the same function. / (transitive, in the phrase "substitute X for Y") To use X in place of Y.

A replacement or stand-in for something that achieves a similar result or purpose. / (sports) A player who is available to replace another if the need arises, and who may or may not actually do so.

simple past tense and past participle of substitute

plural of substitute

Third-person singular simple present indicative form of substitute

Alternative form of substitutor

plural of substituter

The quality of being substitutable; the capacity to be substituted.

(philosophy) A logical relationship in which two terms can be mutually substituted without affecting the truth value of any propositions in which the terms occur, thereby establishing that the terms are identical.

Of or pertaining to substitution or to a substitute