safety in numbers . safety in numbers {n. phr.} Protection against trouble by being in a group. Peter said, "Stay in a group; there is safety in numbers." Categories: add yours {n. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: S Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Discuss