occurring two times a year in English:

adv. biannually

A new biannual tournament would involve home and away games.

The committee has just published its biannual report.

Cleaning out the garage may be a biannual project in your household, or your dentist might insist on biannual check-ups.

This is a biannual conference.

The company produces a biannual report, in June and December, on its profits and turnover.

The committee has biannual meetings in October and March.