EXAMPLES FROM THE WEB FOR BI-ANNUAL
Associated words: half-yearly, semi-annual, bi-annual, semestral.
The only romantic visitors are the storks, who use it as an aerodrome on their bi-annual migrations.
During the first ten years the sessions were bi-annual, but since 1895 have been held every five years.
All-night vigils in search of bargains are frequent at the bi-annual sale-festivals.