Extension Definition

ĭk-stĕnshən
extensions
noun
extensions
An extending or being extended.
Webster's New World
The amount or degree to which something is or can be extended; range; extent.
Webster's New World
A part that forms a continuation or addition.
An extension to a factory.
Webster's New World
The position assumed by an extended limb.
American Heritage Medicine
The straightening of a flexed limb.
Webster's New World
Synonyms:
adjective
Designating a device that can be extended or that extends something else.
Extension ladder, extension cord.
Webster's New World

Other Word Forms of Extension

Noun

Singular:
extension
Plural:
extensions

Origin of Extension

  • Middle English extensioun from Old French extension from Latin extēnsiō extēnsiōn- from extēnsus past participle of extendere to extend extend

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Old French extension, from Latin extensio

    From Wiktionary

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