(nonstandard, proscribed) Half as much.

Happening twice each week; semi-weekly.

Twice each week; semi-weekly.

Happening twice each year; semi-annual; biannual.

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

(of cousins) Separated by two generations of descent

(cooking) A type of sweet raised bread baked for a second time in order to render it brown, hard, and crisp.

plural of twice-baked bread

(cricket) A rule ("law" in cricket) which when invoked results in the dismissal of a batsman (out), whereby the batsman has deliberately hit the ball with his bat a second time for a reason other than to protect his wicket.

In accordance with this rule against hitting the ball a second time.