first day

noun

1
usually capitalized F : sunday
used chiefly by the Friends
2
a
: 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

Word History

First Known Use

1649, in the meaning defined above

Time Traveler
The first known use of first day was in 1649

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Cite this Entry

“First day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/first%20day. Accessed 18 Apr. 2024.

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