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3)
#83,150

Inflections of 度胸が据わる

きょ
Meaning
    1. to have steady nerves; to gain courage; to become brave; to become confident
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4)
#161,309

Inflections of 度胸を据える

きょ
Meaning
    1. to muster one's courage; to resolve oneself; to ready oneself for what is to come
      He mustered up his courage to talk to a foreigner.
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