verb
definition
present participle and gerund of open
adjective
definition
Pertaining to the start or beginning of a series of events.
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(cricket) Of the first period of play, usually up to the fall of the first wicket.
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(cricket) Of the batsman who opens the innings or of a bowler who opens the attack}}
noun
definition
An act or instance of making or becoming open.
definition
A gap permitting passage through.
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An act or instance of beginning.
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Something that is a beginning.
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A vacant position, especially in an array.
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An opportunity, as in a competitive activity.
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(mathematics) In mathematical morphology, the dilation of the erosion of a set.