also: ぜんぱんせん
noun
first half of a game; first half of a match
Used in sports and competitions to refer to the initial period before halftime or the midpoint.
前半戦は両チームとも無得点だった。
Both teams were scoreless in the first half.
前半戦の終了間際にゴールが決まっ
A goal was scored just before the end of the first half.