English dictionary

Info: This web site is based on WordNet 3.0 from Princeton University.

English noun: expansion

1. expansion (act) the act of increasing (something) in size or volume or quantity or scope


Broader (hypernym)increase, step-up

Narrower (hyponym)dilatation, dilation, distension, distention, extension, inflation, magnification, stretching


2. expansion a function expressed as a sum or product of terms

SamplesThe expansion of (a+b)^2 is a^2 + 2ab + b^2.

Broader (hypernym)function, map, mapping, mathematical function, single-valued function

Domain categorymath, mathematics, maths

3. expansion (communication) a discussion that provides additional information

Synonymselaboration, enlargement

Broader (hypernym)discourse, discussion, treatment

Narrower (hyponym)embellishment, embroidery, expatiation

4. expansion (act) adding information or detail

Synonymsexpanding upon

Broader (hypernym)increase, step-up

Narrower (hyponym)amplification, annotating, annotation, elaboration, subjoining, subjunction, supplementation

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