break-in break-in {n.} (stress on "break") A robbery; a burglary. We lost our jewelry during a break-in. Categories: add yours {n.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: B Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Post my comment