stand up to stand up to {v.} To meet with courage. Mary stood up to the snarling dog that leaped toward her. A soldier must stand up to danger. Categories: add yours add yours {v.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2025 To section: S Subscribe to: American Idioms► Also consider the parent subscriptions (3)Idioms feedEnglish languageHome page and general feed Post my comment Post my comment