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 (sĕm′ē-ăn′yo͞o-əl, sĕm′ī-)
Occurring or issued twice a year.

sem′i·an′nu·al·ly adv.


1. occurring every half-year
2. lasting for half a year
ˌsemiˈannually adv


(ˌsɛm iˈæn yu əl, ˌsɛm aɪ-)

1. occurring, done, or published every half year or twice a year.
2. lasting for half a year.
sem`i•an′nu•al•ly, adv.
usage: See bi-1.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.semiannual - occurring or payable twice each year
periodic, periodical - happening or recurring at regular intervals; "the periodic appearance of the seventeen-year locust"
References in periodicals archive ?
Appearing at the Television Critics Association semiannual press tour in Pasadena, Silverman said: ``I don't think anything is off-limits if it's funny enough.
Title V reporting requirements include quarterly and/or semiannual reports, annual compliance certification, annual emission fees and notices of exceeded emissions limits.
I've always thought that you need to use all of the replacement parts that come in the semiannual service kit, NSN 2540-01-255-3347, and the annual service kit;, NSN 4330-01-117-7943, regardless of the condition of the parts being replaced.
But officials with the Chief Legislative Analyst's Office said the city has made progress since the previous semiannual report.
Mechanics, it's not surprising if you're confused about what you're supposed to do during annual and semiannual PMCS for M1AI and M1A2 tanks.
The Friends raised $2,000 for the Newhall Library Renaissance fund at its semiannual book sale in May, and renovations have already begun.
NASDAQ - GCBC) announced today that its Board of Directors has approved the maintenance of the semiannual cash dividend at $0.