seize on . seize on {v.} To make use of (a happening or idea.) Bob seized on the rain as an excuse for missing school. Categories: add yours {v.} 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 Comment on this entry