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semi-annual

adjective

semi-annual is an adjective meaning “Alternative spelling of semiannual” (English Wiktionary, September 2026). It is spelled S-E-M-I-A-N-N-U-A-L.

What does semi-annual mean?

adjective

  1. 1

    Alternative spelling of semiannual.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Words people confuse with semi-annual

Word pairs people search, with the monthly searches for “a vs b” (G: Google, B: Bing, United States).

bi-annual vs semi-annual1,600 G
semi-annual vs semiannual50 G

Also written: semiannual (one word or two).

Sources: Google and Bing searches (September 2025 to August 2026, through DataForSEO); English Wiktionary (homophones, alternative spellings).