name day name day {n.} The day of the saint for whom a person is named. Lawrence's name day is August 10, the feast of St. Lawrence. Categories: add yours add yours {n.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2025 » In RussianTo section: N Subscribe to: American Idioms► Also consider the parent subscriptions (3)Idioms feedEnglish languageHome page and general feed Comment on this entry Comment on this entry