first day


Definition of first day

  1. 1 usually capitalized F :  sunday —used chiefly by the Friends

  2. 2a :  a day when the postage stamps of a new issue are first placed on sale; especially :  one on which recognition of the event is made by special cancellations and often by cachets on mail bearing the stamps b :  first day cover

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First Known Use of first day


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capable of being understood in two ways

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