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conquest; subjugation
overcoming (a difficulty); conquering (e.g. a mountain); mastery (of a skill)
登山家は世界最高峰の征服に挑んだ。
The mountaineer challenged the conquest of the world's highest peak.
彼は恐怖心を征服しようと努力した。
He tried hard to conquer his fear.
自分の弱さを征服した。
I conquered my own weakness.