JMdict: 1254200

決め手 【きめて】

  1. [n] decider; person who decides
  2. [n] decisive factor; clincher; key; trump card; winning move; decisive blow; conclusive evidence
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
決 Decide, Fix, Agree Upon, Appoint ケツ き.める, -ぎ.め, き.まる, さ.く
手 Hand シュ, ズ て, て-, -て, た-