Meaning of crack

Definition of crack

(adj) of the highest quality; "an ace reporter"; "a crack shot"; "a first-rate golfer"; "a super party"; "played top-notch tennis"; "an athlete in tiptop condition"; "she is absolutely tops"
(noun) a long narrow opening
a narrow opening; "he opened the window a crack"
a sudden sharp noise; "the crack of a whip"; "he heard the cracking of the ice"; "he can hear the snap of a twig"
a chance to do something; "he wanted a shot at the champion"
a blemish resulting from a break without complete separation of the parts; "there was a crack in the mirror"
a purified and potent form of cocaine that is smoked rather than snorted; highly addictive
a usually brief attempt; "he took a crack at it"; "I gave it a whirl"
the act of cracking something
(verb) become fractured; break or crack on the surface only; "The glass cracked when it was heated"
make a very sharp explosive sound; "His gun cracked"
make a sharp sound; "his fingers snapped"
hit forcefully; deal a hard blow, making a cracking noise; "The teacher cracked him across the face with a ruler"
pass through (a barrier); "Registrations cracked through the 30,000 mark in the county"
break partially but keep its integrity; "The glass cracked"
break suddenly and abruptly, as under tension; "The pipe snapped"
gain unauthorized access computers with malicious intentions; "she cracked my password"; "crack a safe"
tell spontaneously; "crack a joke"
cause to become cracked; "heat and light cracked the back of the leather chair"
reduce (petroleum) to a simpler compound by cracking
break into simpler molecules by means of heat; "The petroleum cracked"

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