its something you use instead of that one thing.
Substitute for an actor.
ersatz
a person or thing acting in place of another
The dictionary definition of Surrogate is substitute. A surrogate mother is a woman who has someone else's baby for them, in effect a woman who is a substitute for the mother.
The slope-intercept equation y = mx + b is that they mechanically substitute for m and b without understanding their meaning.
an instrument
A verb meaning to make easier is facilitate.One meaning to make less complex is simplify.
ajinamoto is a taste maker it also acts as a substitute for salt and sugar or both
The slope-intercept equation y = mx + b is that they mechanically substitute for m and b without understanding their meaning.
An adjective meaning free from error could be flawless or perfect.
One appointed as the substitute of another, and empowered to act for him, in his name or his behalf; a substitute in office; a lieutenant; a representative; a delegate; a vicegerent; as, the deputy of a prince, of a sheriff, of a township, etc., A member of the Chamber of Deputies.
Substitute Combine Adapt Modify Put to another use Eliminate Rearrange/reverse :)