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to go against; to fight against; to oppose; to resist; to deny
運命に諍うことを諦めなかった。
I never gave up fighting against fate.
不公平な扱いに諍う勇気を持つべきだ。
You should have the courage to resist unfair treatment.
彼は権力に諍って声を上げ続けた。
He kept speaking out against the authorities.