noun

  1. decider, person who decides.
  2. decisive factor, clincher, key, trump card, winning move, decisive blow, conclusive evidence.

Variations

Pronunciation Kanji Kana Is Common
 
決め手 きめて
 
極め手 きめて

Contained Kanji Breakdown

decide, fix, agree upon
き.める ケツ さ.く (3rd, N3)
water, water radical (no. 85)
さんずい
decide, determine, archery glove
カイ ケツ ケチ (Kentei 1)
large, big
ダイ おお- た (1st, N5)
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
person
ひと ニン ジン (1st, N5)
hand
て シュ ズ (1st, N4)