twice-yearly

English

Adjective

twice-yearly (not comparable)

1. Happening twice each year; semi-annual; biannual.
   • 1950, British Ecological Society, “The Journal of Animal Ecology”, in Science, Blackwell, page 66:

     While the migrations of many butterflies now appear to be twice-yearly movements away from and back to the same areas, they differ from those of birds in ...

   • 1992, Rigas Doganis, The Airport Business, Routledge, →ISBN, page 101:

     At the twice-yearly IATA timetable co-ordination meetings, airlines from ...

   • 2008, The American Affluence Research Centre website‎^[1]:

     Twice-Yearly Surveys of Affluent Americans

Adverb

twice-yearly (not comparable)

1. (UK & Commonwealth) Twice each year; semi-yearly; biannually.