biennial
adj.adj. happening once every two years. You use this to describe events like festivals or meetings that do not happen every year.
adj. occurring or appearing once every two years. Often used to describe recurring events, such as exhibitions or botanical cycles.
The city hosts a biennial art festival every other summer.
The committee holds a biennial review to assess the long-term impact of their environmental policies.
While some species are annuals, this biennial plant focuses its first year on leaf growth and its second on flowering before completing its life cycle.
Borrowed from Latin bienni(um) (“two-year period”) [from bis, bi- (“twice”) + annus (“year”)] + -al (suffix forming adjectives). By surface analysis, bi- + -ennial.
Typically used attributively before a noun. Often confused with 'biannual', which means twice a year.
The biennial meeting happens twice a year.The biennial meeting happens every two years.Learners often confuse 'biennial' (every two years) with 'biannual' (twice a year).