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semiannual

[ sem-ee-an-yoo-uhl, sem-ahy- ]
/ ˌsɛm iˈæn yu əl, ˌsɛm aɪ- /
See synonyms for semiannual on Thesaurus.com

adjective

Also semiyearly . occurring, done, or published every half year or twice a year; biannual.
lasting for half a year: a semiannual plant.

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Origin of semiannual

First recorded in 1785–95; semi- + annual

words often confused with semiannual

See bi-1.

OTHER WORDS FROM semiannual

sem·i·an·nu·al·ly, adverb

WORDS THAT MAY BE CONFUSED WITH semiannual

biannual, biennial, semiannual , semiyearly (see confusables note at bi-1)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Words related to semiannual

biannual, semiyearly

Example sentences from the Web for semiannual

British Dictionary definitions for semiannual

semiannual
/ (ˌsɛmɪˈænjʊəl) /

adjective

occurring every half-year
lasting for half a year

Derived forms of semiannual

semiannually, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012