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 and thus. …

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

Illustrated definition of Substitution: Putting values where the letters (variables) are. Example: What is x + x/2 when x=5? Answer: Put 5 where...

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

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.

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

Definition of substitution noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Aug 1, 2024 · Substitution is a fundamental mathematical technique used to solve equations and simplify complex expressions by replacing one term or variable with an equivalent expression.

SUBSTITUTION definition: the act of substituting or state of being substituted See examples of substitution used in a sentence.