to break at once; to break short, as substances that are brittle.-to strike, to hit, or to shut, with a sharp sound.-to bite or seize suddenly, especially with the teeth.-to break upon suddenly with sharp, angry words; to treat snappishly; -- usually with up.-to crack; to cause to make a sharp, cracking noise; as, to snap a whip.-to project with a snap.-to break short, or at once; to part asunder suddenly; as, a mast snaps; a needle snaps.-to give forth, or produce, a sharp, cracking noise; to crack; as, blazing firewood snaps.-to make an effort to bite; to aim to seize with the teeth; to catch eagerly (at anything); -- often with at; as, a dog snapsat a passenger; a fish snaps at the bait.-to utter sharp, harsh, angry words; -- often with at; as, to snap at a child.-to miss fire; as, the gun snapped.-a sudden breaking or rupture of any substance.-a sudden, eager bite; a sudden seizing, or effort to seize, as with the teeth.-a sudden, sharp motion or blow, as with the finger sprung from the thumb, or the thumb from the finger.-a sharp, abrupt sound, as that made by the crack of a whip; as, the snap of the trigger of a gun.-a greedy fellow.-that which is, or may be, snapped up; something bitten off, seized, or obtained by a single quick movement; hence, a bite, morsel, or fragment; a scrap.-a sudden severe interval or spell; -- applied to the weather; as, a cold snap.-a small catch or fastening held or closed by means of a spring, or one which closes with a snapping sound, as the catch of a bracelet, necklace, clasp of a book, etc.-a snap beetle.-a thin, crisp cake, usually small, and flavored with ginger; -- used chiefly in the plural.-briskness; vigor; energy; decision.-any circumstance out of which money may be made or an advantage gained.