決め手・極め手|きめてkimete[0]heiban (flat)

1. noundecider; person who decides
2. noundecisive factor; clincher; key; trump card; winning move; decisive blow; conclusive evidence
   ワインが食事しょくじの決め手きめてです。↗

   Wine can make the meal.

• Related秘訣ひけつNeutralA secret knack or method for doing something well, as in 「成功の秘訣」; 「決め手」 is the factor that settles a contest or a question of truth.
• Related鍵かぎNeutralLiterally a key, and figuratively the key or clue to solving a problem; 「決め手」 stresses the one move that decides the outcome.
• RelatedキーNeutralA loanword for a key or a piano/keyboard key, also used figuratively for the key to something; 「決め手」 is more the final deciding factor.
• RelatedキーポイントNeutralA loanword for the most important point of a matter; 「決め手」 is the factor that sways the result.
• Related要訣ようけつWrittenWritten/formal term for the knack or essentials of a task; 「決め手」 leans toward the decisive factor.
• Related要諦ようていWrittenWritten/formal term for the most essential point of a matter; 「決め手」 leans toward the key that decides victory or defeat.

Use 「決め手」 for the factor that decides a contest, a question of truth, or a purchase, as in 「決め手に欠ける」; use 「秘訣」 for the secret of success, 「鍵」 or 「キー」 for the key to solving a problem, and 「キーポイント」 for a key point.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 最終的さいしゅうてきに物事ものごとを決定けっていする人ひと。
2. 真偽しんぎや勝ち負かちまけなどの判断はんだんを決定けっていする方法ほうほうや根拠こんきょ。