Possible Definitions:
1. Crack (v. t.) To break or burst, with or without entire separation of the parts; as, to crack glass; to crack nuts.
2. Crack (v. t.) To rend with grief or pain; to affect deeply with sorrow; hence, to disorder; to distract; to craze.
3. Crack (v. t.) To cause to sound suddenly and sharply; to snap; as, to crack a whip.
4. Crack (v. t.) To utter smartly and sententiously; as, to crack a joke.
5. Crack (v. t.) To cry up; to extol; -- followed by up.
6. Crack (v. i.) To burst or open in chinks; to break, with or without quite separating into parts.
7. Crack (v. i.) To be ruined or impaired; to fail.
8. Crack (v. i.) To utter a loud or sharp, sudden sound.
9. Crack (v. i.) To utter vain, pompous words; to brag; to boast; -- with of.
10. Crack (n.) A partial separation of parts, with or without a perceptible opening; a chink or fissure; a narrow breach; a crevice; as, a crack in timber, or in a wall, or in glass.
11. Crack (n.) Rupture; flaw; breach, in a moral sense.
12. Crack (n.) A sharp, sudden sound or report; the sound of anything suddenly burst or broken; as, the crack of a falling house; the crack of thunder; the crack of a whip.
13. Crack (n.) The tone of voice when changed at puberty.
14. Crack (n.) Mental flaw; a touch of craziness; partial insanity; as, he has a crack.
15. Crack (n.) A crazy or crack-brained person.
16. Crack (n.) A boast; boasting.
17. Crack (n.) Breach of chastity.
18. Crack (n.) A boy, generally a pert, lively boy.
19. Crack (n.) A brief time; an instant; as, to be with one in a crack.
20. Crack (n.) Free conversation; friendly chat.
21. Crack (a.) Of superior excellence; having qualities to be boasted of.
