· a sudden sharp noise; "the crack of a whip"; "he heard the cracking of the ice"; "he can hear the snap of a twig"

Synonym(s): crack, snap

Hypernym(s): noise

· the act of cracking something

Synonym(s): fracture, crack

Hypernym(s): breakage, break, breaking

· the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process)

Hypernym(s): chemical_process, chemical_change, chemical_action

· become fractured; break or crack on the surface only; "The glass cracked when it was heated"

Synonym(s): check, break

Hypernym(s): change

· make a very sharp explosive sound; "His gun cracked"

Hypernym(s): sound, go

· make a sharp sound; "his fingers snapped"

Synonym(s): snap

Hypernym(s): sound, go

· hit forcefully; deal a hard blow, making a cracking noise; "The teacher cracked him across the face with a ruler"

Hypernym(s): hit

· pass through (a barrier); "Registrations cracked through the 30,000 mark in the county"

Synonym(s): break_through

Hypernym(s): pass

· break partially but keep its integrity; "The glass cracked"

Hypernym(s): crack, check, break

· break suddenly and abruptly, as under tension; "The pipe snapped"

Synonym(s): snap

Hypernym(s): break, separate, split_up, fall_apart, come_apart

· gain unauthorized access computers with malicious intentions; "she cracked my password"; "crack a safe"

Hypernym(s): break_in, break

· suffer a nervous breakdown

Synonym(s): crack_up, crock_up, break_up, collapse

Hypernym(s): suffer, sustain, have, get

· tell spontaneously; "crack a joke"

Hypernym(s): tell, narrate, recount, recite

· cause to become cracked; "heat and light cracked the back of the leather chair"

Hypernym(s): change, alter, modify

· reduce (petroleum) to a simpler compound by cracking

Hypernym(s): decompose, break_up, break_down

· break into simpler molecules by means of heat; "The petroleum cracked"

Hypernym(s): change

· very good; "he did a bully job"; "a neat sports car"; "had a great time at the party"; "you look simply smashing"; "we had a grand old time"

Synonym(s): bang-up, bully, corking, dandy, great, groovy, keen, neat, nifty, not_bad, peachy, slap-up, swell, smashing, old