Semiannual definition

sĕmē-ănyo͝o-əl, sĕmī-
Occurring or issued twice a year.
adjective
12
4
Occurring twice a year; half-yearly; biannual.
adjective
4
4
Done, happening, appearing, etc. every half year or twice a year.
adjective
4
8
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Origin of semiannual

  • semi- half + Latin annus year + -al

    From Wiktionary