Added 9 October 2026
expansion
/ɪkˈspænʃən/ noun
In Latin: expānsiō Wiktionary
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about expansion at Wordnik → Where our words come from →
- The act of increasing (something) in size or volume or quantity or scope.
-
A function expressed as a sum or product of terms.
the expansion of (a+b)^2 is a^2 + 2ab + b^2
- A discussion that provides additional information.
Origin
Borrowed from French expansion, from Latin expānsiō. By surface analysis, expand + -sion.
From Wiktionary, via Kaikki.org (CC BY-SA)