English Lexicon

Semi-annual

/ˌsɛm.iˈæn.ju.əl/
adjectiveCEFR B2 (Upper)Top #8500 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Occurring twice a year; half-yearly.

    "The company holds its semi-annual performance review in June and December."
  2. 2

    Lasting for or relating to a period of half a year.

    "They published a semi-annual report detailing the financial progress of the first six months."

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Antonyms & Contrasting Words (2)

Linguistic Origin & Historical Etymology

Derived from the Latin prefix 'semi-' meaning 'half' combined with 'annualis' meaning 'yearly', originating from 'annus' meaning 'year'. The term entered the English language in the late 16th century to denote occurrences happening twice a year.

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