English Lexicon

Extension

/ɪkˈstɛn.ʃən/
nounCEFR B2 (Upper)Top #1450 frequency
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Comprehensive Definitions & Senses

1 sense
As noun
  1. 1

    A part that is added to something to enlarge or prolong it.

    "The university is building an extension to the library."

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Synonyms (1)

Linguistic Origin & Historical Etymology

Derived from the Late Latin 'extensio', stemming from the Latin verb 'extendere' meaning 'to stretch out', composed of 'ex-' (out) and 'tendere' (to stretch). It entered Middle English via Old French in the 14th century, initially relating to the physical stretching of a body or space before expanding to abstract domains such as time, meaning, and technology.

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