expansion meaning and definition

EXPANSION noun

Definition of expansion (noun)

1. the act of increasing (something) in size or volume or quantity or scope
   • synonyms: enlargement
   • antonym: contraction
2. a function expressed as a sum or product of terms
   • "the expansion of (a+b)^2 is a^2 + 2ab + b^2"
3. a discussion that provides additional information
   • synonyms: elaboration, enlargement
4. adding information or detail
   • synonyms: expanding upon