Friday the thirteenth

noun

A particular date combination that occurs when the thirteenth day of a month falls on a Friday, and which is considered unlucky in some cultures.

Similar
Black Friday
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Meanings

nounFriday the thirteenth (plural Fridays the thirteenth)

plural Fridays the thirteenth · alternative Friday the 13th

  1. A particular date combination that occurs when the thirteenth day of a month falls on a Friday, and which is considered unlucky in some cultures.

    Synonyms: Black Friday

Synonyms & antonyms

nounA particular date combination that occurs when the thirteenth day of a month falls on a Friday, and which is considered unlucky in some cultures.

Similar
Black Friday
Also see
black friday

Origin

Believed to have been derived from the mass arrest of the Knights Templar on Friday, October 13, 1307.

Full word history & related roots →

Translations

Bengali তেরোই জুম্মাবার
  • তেরোই জুম্মাবার (terōi jummabar)particular date combination that occurs when the thirteenth day of a month falls on a Friday
Czech pátek třináctého
  • pátek třináctéhoparticular date combination that occurs when the thirteenth day of a month falls on a Friday
German Freitag der 13.
  • Freitag der 13.particular date combination that occurs when the thirteenth day of a month falls on a Friday
Hindi शुक्रवार 13 वें
  • शुक्रवार 13 वें (śukravār 13 vẽ)particular date combination that occurs when the thirteenth day of a month falls on a Friday
Hungarian péntek tizenharmadika
  • péntek tizenharmadikaparticular date combination that occurs when the thirteenth day of a month falls on a Friday
Japanese 13日の金曜日
  • 13日の金曜日particular date combination that occurs when the thirteenth day of a month falls on a Friday
Korean 13일의 금요일
  • 13일의 금요일 (13ir-ui geumyoil)particular date combination that occurs when the thirteenth day of a month falls on a Friday
Portuguese Sexta-feira 13
  • Sexta-feira 13particular date combination that occurs when the thirteenth day of a month falls on a Friday
Spanish Viernes 13, martes trece
  • Viernes 13particular date combination that occurs when the thirteenth day of a month falls on a Friday
  • martes treceparticular date combination that occurs when the thirteenth day of a month falls on a Friday
Cite this entry
APA

Friday the thirteenth. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Friday%20the%20thirteenth

MLA

“Friday the thirteenth.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Friday%20the%20thirteenth. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Friday the thirteenth,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Friday%20the%20thirteenth.

Source: Friday the thirteenth on Wiktionary, CC BY-SA 4.0.