Biennial Meaning

/baɪˈɛn.i.əl/
C2

Definition, CEFR level C2, pronunciation, examples, and quiz.

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adjHappening every two years.

adjLasting for two years.

Parsnip is a biennial species, similar to carrots.
Members of the U.S. House of Representatives are elected in biennial elections.
Synonyms:
Antonyms:
CEFR Practice Quiz
The garden club holds a ____ plant show every two years.
CEFR Practice Quiz (Alternate)
A ____ event happens once every two years, like some art festivals.

Borrowed from Latin bienni(um) (“two-year period”) [from bis, bi- (“twice”) + annus (“year”)] + -al (suffix forming adjectives). By surface analysis, bi- + -ennial.

"This is a marked difference from the task force’s previous guidance, which was to start biennial mammograms by age 50." — 2024 May 8, Katia Hetter, “Mammograms are now recommended starting at age 40. Should you get one?”, in CNN:
"The famous Biennial was won by Earl of Dartrey, a light, peacocky horse, who was, perhaps, better than he looked." — 1891, Sir George Chetwynd, Racing Reminiscences and Experiences of the Turf, page 122:

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CEFR Practice Quiz
The garden club holds a ____ plant show every two years.
CEFR Practice Quiz (Alternate)
A ____ event happens once every two years, like some art festivals.

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