snap

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To make a brisk sharp cracking sound.
• intransitive verb To break suddenly with a brisk, sharp, cracking sound.
• intransitive verb To give way abruptly under pressure or tension.
• intransitive verb To suffer a physical or mental breakdown, especially while under stress.
• intransitive verb To bring the jaws briskly together, often with a clicking sound; bite.
• intransitive verb To take up something suddenly and eagerly; snatch or grasp.
• intransitive verb To speak abruptly or sharply.
• intransitive verb To move swiftly and smartly.
• intransitive verb To flash or appear to flash light; sparkle.
• intransitive verb To open, close, or fit together with a click.
• intransitive verb To snatch at with the teeth or mouth; bite.
• intransitive verb To pull apart or break with a snapping sound.
• intransitive verb To utter abruptly or sharply.
• intransitive verb To cause to emit a snapping sound.
• intransitive verb To close or latch with a snapping sound.
• intransitive verb To cause to move suddenly.
• intransitive verb To take (a photograph).
• intransitive verb To photograph.
• intransitive verb Football To pass (the ball) from the ground back between the legs to begin a down; hike.
• noun A sudden sharp cracking sound or the action producing such a sound.
• noun A sudden breaking.
• noun A clasp, catch, or other fastening device that operates with a snapping sound.
• noun A sudden attempt to bite, snatch, or grasp.
• noun The sound produced by rapid movement of a finger from the thumb tip to the base of the thumb.
• noun The act of producing this sound.
• noun The sudden release of something held under pressure or tension.
• noun A thin, crisp, usually circular cookie.
• noun Capacity to make a snapping sound; elasticity.
• noun Informal Briskness, liveliness, or energy.
• noun A brief spell of brisk, cold weather.
• noun Something accomplished without effort. synonym: breeze.
• noun A snapshot.
• noun The taking of a snapshot.
• noun A snap bean.
• noun Football The passing of the ball from the ground back through the legs to a back to initiate a play.
• adjective Made or done suddenly, with little or no preparation.
• adjective Fastening with a snap.
• adjective Informal Simple; easy.
• adverb With a snap.
• idiom (snap out of it) To move quickly back to one's normal condition from an undesirable condition, such as depression, grief, or self-pity.

from The Century Dictionary.

• noun A temporary banking game: as, to deal a snap at faro.