蓋を開ける
  ふたを開ける
  ふたをあける
  Expressions (phrases, clauses, etc.)
  Ichidan verb
  antonym: 蓋を閉める
  to open the lid
  to lift a lid
  to open the lid (on)
  to make public
  to start (something)
  to look at the results (consequences, outcome, effect)
  to look at the condition of something
  to open (of a theatre)
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