• An open or empty space in or between things (synset 109402023)
  • A ceremony accompanying the start of some enterprise (synset 107467309)
  • Becoming open or being made open (synset 100384198)
  • The first performance (as of a theatrical production) (synset 107343963)
  • The act of opening something (synset 100339467)
  • Opportunity especially for employment or promotion (synset 114508833)
  • The initial part of the introduction (synset 106409119)
  • A possible alternative (synset 105800018)
  • An aperture or hole that opens into a bodily cavity (synset 105257118)
  • A vacant or unobstructed space that is man-made (synset 103854249)
  • An entrance equipped with a hatch
    Especially a passageway between decks of a ship (synset 103504286)
  • A recognized sequence of moves at the beginning of a game of chess (synset 100458914)
  • The first of a series of actions (synset 100240097)

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