biennial
Noun pluralbiennials
Often confused with biannual
Pluralbiennials
- 1Happening one time every two years.
The town holds a biennial art fair in the park.
Our family reunion is biennial, so we only see our cousins every other summer.
UsageBiennial means every two years. Biannual usually means twice a year.
- 2An event that is held one time every two years.
The town's music biennial is coming back next spring.
Artists from forty countries took part in the biennial.
Similarbiennale
Note
- 3A plant that lives for two years, growing in the first year and flowering in the second, then usually dying.
This foxglove is a biennial, so it won't bloom until next summer.
My grandmother plants new biennials every spring so some are always in flower.
- 4Going on for two years.
The state has a biennial budget that covers two years at a time.
This flower is biennial, so each plant lives for just two years.
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Origin
It comes from a Latin word meaning "two-year period", made from words for "twice" and "year".
Checked 31 Oct 2026 · 4 facts
- Biennial comes from Latin. en.wiktionary.org
- The Latin source word means a two-year period. en.wiktionary.org
- The source contains an element meaning twice. en.wiktionary.org
- The source contains annus, meaning year. en.wiktionary.org