You searched for: “substitute
substitute (adjective) (not comparable)
Referring to something or someone that is needed or employed instead of another: Jane had a substitute teacher for German on Monday because her regular German teacher was sick with the flu!

Mrs. Jones liked to use substitute sugar in her tea instead of real sugar.

substitute (s) (noun), substitutes (pl)
1. A replacement for someone or something: Some people use almond milk as a substitute for dairy milk.
2. A sports player as a back-up; fill-in or stand-in: There were no substitutes available, so the players were all hoping that no one would get hurt on the field or have to leave the game.
substitute (verb), substitutes; substituted; substituting
1. To exchange one thing for another equivalent thing: For the salad dressing, a normal onion can be substituted for a spring onion.
2. To fill in, as to cover for someone: Mrs. Smith had to substitute for Mr. Thompson because he was sick that day.
3. To replace: Some of the old parts of the machine were rusty and had to be substituted with new ones.
A unit related to: “substitute
(Latin: substitute; change, alternation)
(an artificial substitute for a missing part of the body)