man of his word man of his word {n. phr.} A man who keeps his promises and does the things he agrees to do; a man who can be trusted. My uncle is a man of his word. Categories: add yours {n. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: M Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Discuss