- semiannual as an adjective:
- 1
semiannual
adjective
1 semiannual
Occurring or payable twice each year.
synonyms: biannual, biyearly, half-yearly.
Moby thesaurus: annual, biannual, biennial, bimonthly, biweekly, catamenial, centenary, centennial, daily, decennial, diurnal, fortnightly, hebdomadal, hourly, menstrual, momentary, momently, monthly, quarterly, quotidian ... show more.
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