1.
first round; opening round
The initial round of matches in a tournament or competition.
一回戦で負けた。
We lost in the first round.
一回戦の相手は強豪チームだ。
Our first-round opponent is a powerhouse team.
やっと一回戦を突破した。
We finally advanced past the first round.
一回戦 refers to the first round in a tournament.
RELATED TERMS:
- 二回戦: second round
- 準々決勝: quarterfinals
- 準決勝: semifinals
- 決勝/決勝戦: finals
- 一回戦敗退: first-round elimination
CONTEXT:
Commonly used in sports tournaments (甲子園 high school baseball, soccer tournaments, etc.) and other competitive events.