semiannual

[ sem-ee-an-yoo-uh l, sem-ahy- ]
/ ˌsɛm iˈæn yu əl, ˌsɛm aɪ- /

adjective

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

Nearby words

  1. semi-professional,
  2. semi-solid,
  3. semi-trailer,
  4. semi-weekly,
  5. semiamateur,
  6. semiaquatic,
  7. semiarch,
  8. semiarid,
  9. semiattached,
  10. semiautobiographical

Origin of semiannual

First recorded in 1785–95; semi- + annual

Related formssem·i·an·nu·al·ly, adverb

Can be confusedbiannual biennial semiannual (see usage note at bi-1)

Usage note

See bi-1.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for semi-annual


British Dictionary definitions for semi-annual

semiannual

/ (ˌsɛmɪˈænjʊəl) /

adjective

occurring every half-year
lasting for half a year
Derived Formssemiannually, 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

Word Origin and History for semi-annual

semi-annual

adj.

also semiannual, 1775, from semi- + annual. Related: Semiannually.

Online Etymology Dictionary, © 2010 Douglas Harper