biannual
happening once every two years: 两年一次的
The museum will hold its bi-yearly gala on November 14.
The treatment is followed by five yearly checkups, moving to biyearly after that.
Synonymbiennial
He is the co-publisher of a bi-yearly magazine devoted to festivals taking place in the state.
She made the remarks in her biyearly speech to the assembly.
The length and weight of juvenile and adult fish in the river were recorded over 10 years of bi-yearly sampling.
SMART Vocabulary: related words and phrases
Relating to regular periods of time
afternoons
annual
annum
biannual
biannually
dailiness
daily
daily grind
evenings
fortnightly
hourly
nights
p.c.m.
p.w.
per annum
quadrennial
quadrennially
triennial
triennially
weekly