JMdict: 1951450

口開け 【くちあけ】

  1. [n] opening (of a bottle); broaching
  2. [n] beginning; opening; commencement (e.g. of sales); first sale
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
口 Mouth コウ, ク くち
開 Open, Unfold, Unseal カイ ひら.く, ひら.き, -びら.き, ひら.ける, あ.く, あ.ける