The meaning of SUBSTITUTION is the act, process, or result of substituting one thing for another. How to use substitution in a sentence.

We can use many different words and phrases in substitution, including words such as both, either, some (indefinite quantifying pronouns), do and so, and expressions such as the same …

SUBSTITUTION meaning: 1 : the act of substituting or replacing one person or thing with another; 2 : someone or something that is or can be substituted for another

substitution in American English (ˌsʌbstəˈtuʃən , ˌsʌbstəˈtjuʃən ) noun the substituting of one person or thing for another

Substitute means to put in the place of another. In Algebra Substitution means putting numbers where the letters are:

Dec 14, 2025 · substitution (countable and uncountable, plural substitutions) The act of substituting or the state of being substituted.

The substitution method is a technique for solving a system of equations. This article reviews the technique with multiple examples and some practice problems for you to try on your own.