Synonyms for bi-annual

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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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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.