To use in place of something else, with the same function. (verb)
In the phrase "substitute X for Y", to use X in place of Y. (verb)
In the phrase "substitute X with/by Y", to use Y in place of X. (verb)
To remove (a player) from the field of play and bring on another in his place. (verb)
To serve as a replacement (for someone or something) (verb)
A replacement or stand-in for something that achieves a similar result or purpose. (noun)
A player who is available to replace another if the need arises, and who may or may not actually do so. (noun)
Examples of word substitute
It may be admitted at once that when the term substitute is interpreted without reference to this basis of fact it lends itself very easily to misconstruction.
He would feel the want of you without having the satisfaction of fancying himself ill-used, and ---- for your substitute is altogether as good a Nemesis as one would wish to hear of.
On what we call substitute a reputation for decent treatment of minority shareholders so that firms can raise equity finance in the future.
Sandra GonzÃ¡lez, a high-school English teacher, said the cuts, which will eliminate most long-term substitute teachers while raising the number of hours teachers must spend in the classroom weekly to 20 from 18, have brought her to the breaking point.
Of course, should the elected individual become incapable of fulfilling their Term for any reason, a temporary substitute is assigned per the procedures adopted by the people.