A contest or match between opponents; facing or competing against someone (used for sports, games, battles, etc.).
明日の対戦は地元チームと強豪チームの一戦だ。
Tomorrow's match is a game between the local team and a top team.
彼は国際大会で多くの強者と対戦してきた経験がある。
He has experience facing many strong opponents in international tournaments.
ゲームで対戦モードを選んで友達と遊んだ。
I chose the versus mode in the game and played with my friend.