noun
semifinal match; semifinal game
Refers specifically to a match or game in the semifinal round of a tournament. Often used in sports contexts.
準決勝戦は明日行われます。
The semifinal match will be held tomorrow.
彼は準決勝戦で敗れた。
He lost in the semifinal game.
Compound of 準 (jun, 'semi-') + 決勝 (kesshō, 'final round') + 戦 (sen, 'match').