opponent

US /əˈpoʊ.nənt/
UK /əˈpoʊ.nənt/
"opponent" picture
1.

対戦相手, 敵

someone who competes against or fights another in a contest, game, or argument

:
He defeated his opponent in the final round.
彼は最終ラウンドで対戦相手を破った。
The debaters presented strong arguments against their opponents.
討論者たちは相手に対して強力な議論を提示した。
2.

反対者, 異議を唱える人

a person or group who is against something, such as a policy, idea, or action

:
The new policy faced strong resistance from its opponents.
新しい政策は反対派から強い抵抗を受けた。
She became a vocal opponent of the proposed development.
彼女は提案された開発の反対者として声を上げた。