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

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

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 23 Nov. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!