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
b
Dictionary Entries Near first day
Cite this Entry
“First day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/first%20day. Accessed 29 Nov. 2024.
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