first day

proper noun

Sunday (the first day of the Judeo-Christian seven day week).

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Meanings

first day1

proper noun
  1. Alternative letter-case form of First Day

First Day2

proper noun

alternative First day · alternative first day · alternative First-day

  1. QuakerismChristianitySunday (the first day of the Judeo-Christian seven day week).

First day3

proper noun
  1. alternativeAlternative form of First Day

Synonyms & antonyms

Also see
lord's daysunday

Origin

Used (like also First Month in place of January, etc) to avoid the pagan associations of the traditional name.

Full word history & related roots →
Cite this entry
APA

first day. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/first%20day

MLA

“first day.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/first%20day. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “first day,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/first%20day.

Source: first day on Wiktionary, CC BY-SA 4.0.