| crack | | |
| n. (object) | 1. cleft, crack, crevice, fissure, scissure | a long narrow opening. |
| ~ chap | a crack in a lip caused usually by cold. |
| ~ chink | a narrow opening as e.g. between planks in a wall. |
| ~ crevasse | a deep fissure. |
| ~ fatigue crack | a crack in metal resulting from metal fatigue. |
| ~ faulting, geological fault, fracture, break, fault, shift | (geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other.; "they built it right over a geological fault"; "he studied the faulting of the earth's crust" |
| ~ opening, gap | an open or empty space in or between things.; "there was a small opening between the trees"; "the explosion made a gap in the wall" |
| ~ rift | a narrow fissure in rock. |
| ~ slit | a narrow fissure. |
| ~ split | a lengthwise crack in wood.; "he inserted the wedge into a split in the log" |
| ~ volcano, vent | a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt. |
| n. (artifact) | 2. crack, gap | a narrow opening.; "he opened the window a crack" |
| ~ lacuna, blank | a blank gap or missing part. |
| ~ opening | a vacant or unobstructed space that is man-made.; "they left a small opening for the cat at the bottom of the door" |
| ~ spark gap | the gap between two high-potential terminals. |
| n. (shape) | 3. chap, crack, cranny, crevice, fissure | a long narrow depression in a surface. |
| ~ imprint, impression, depression | a concavity in a surface produced by pressing.; "he left the impression of his fingers in the soft mud" |
| n. (event) | 4. crack, cracking, snap | a sudden sharp noise.; "the crack of a whip"; "he heard the cracking of the ice"; "he can hear the snap of a twig" |
| ~ noise | sound of any kind (especially unintelligible or dissonant sound).; "he enjoyed the street noises"; "they heard indistinct noises of people talking"; "during the firework display that ended the gala the noise reached 98 decibels" |
| n. (state) | 5. crack, shot | a chance to do something.; "he wanted a shot at the champion" |
| ~ colloquialism | a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech. |
| ~ chance, opportunity | a possibility due to a favorable combination of circumstances.; "the holiday gave us the opportunity to visit Washington"; "now is your chance" |
| n. (communication) | 6. crack, quip, sally, wisecrack | witty remark. |
| ~ comment, remark, input | a statement that expresses a personal opinion or belief or adds information.; "from time to time she contributed a personal comment on his account" |
| n. (attribute) | 7. crack | a blemish resulting from a break without complete separation of the parts.; "there was a crack in the mirror" |
| ~ blemish, mar, defect | a mark or flaw that spoils the appearance of something (especially on a person's body).; "a facial blemish" |
| ~ craze | a fine crack in a glaze or other surface. |
| n. (artifact) | 8. crack, crack cocaine, tornado | a purified and potent form of cocaine that is smoked rather than snorted; highly addictive. |
| ~ cocain, cocaine | a narcotic (alkaloid) extracted from coca leaves; used as a surface anesthetic or taken for pleasure; can become powerfully addictive. |
| n. (act) | 9. crack, fling, go, offer, pass, whirl | a usually brief attempt.; "he took a crack at it"; "I gave it a whirl" |
| ~ attempt, effort, try, endeavor, endeavour | earnest and conscientious activity intended to do or accomplish something.; "made an effort to cover all the reading material"; "wished him luck in his endeavor"; "she gave it a good try" |
| n. (act) | 10. crack, cracking, fracture | the act of cracking something. |
| ~ breaking, breakage, break | the act of breaking something.; "the breakage was unavoidable" |
| v. (change) | 11. break, check, crack | become fractured; break or crack on the surface only.; "The glass cracked when it was heated" |
| ~ change | undergo a change; become different in essence; losing one's or its original nature.; "She changed completely as she grew older"; "The weather changed last night" |
| ~ chink, check | make cracks or chinks in.; "The heat checked the paint" |
| ~ crack | cause to become cracked.; "heat and light cracked the back of the leather chair" |
| ~ crack | break partially but keep its integrity.; "The glass cracked" |
| v. (perception) | 12. crack | make a very sharp explosive sound.; "His gun cracked" |
| ~ sound, go | make a certain noise or sound.; "She went `Mmmmm'"; "The gun went `bang'" |
| v. (perception) | 13. crack, snap | make a sharp sound.; "his fingers snapped" |
| ~ sound, go | make a certain noise or sound.; "She went `Mmmmm'"; "The gun went `bang'" |
| v. (contact) | 14. crack | hit forcefully; deal a hard blow, making a cracking noise.; "The teacher cracked him across the face with a ruler" |
| ~ hit | deal a blow to, either with the hand or with an instrument.; "He hit her hard in the face" |
| v. (change) | 15. break through, crack | pass through (a barrier).; "Registrations cracked through the 30,000 mark in the county" |
| ~ go across, pass, go through | go across or through.; "We passed the point where the police car had parked"; "A terrible thought went through his mind" |
| v. (change) | 16. crack | break partially but keep its integrity.; "The glass cracked" |
| ~ crack, check, break | become fractured; break or crack on the surface only.; "The glass cracked when it was heated" |
| ~ chap | crack due to dehydration.; "My lips chap in this dry weather" |
| ~ craze | develop a fine network of cracks.; "Crazed ceramics" |
| ~ alligator | crack and acquire the appearance of alligator hide, as from weathering or improper application; of paint and varnishes. |
| v. (change) | 17. crack, snap | break suddenly and abruptly, as under tension.; "The pipe snapped" |
| ~ come apart, break, fall apart, split up, separate | become separated into pieces or fragments.; "The figurine broke"; "The freshly baked loaf fell apart" |
| v. (social) | 18. crack | gain unauthorized access computers with malicious intentions.; "she cracked my password"; "crack a safe" |
| ~ break in, break | enter someone's (virtual or real) property in an unauthorized manner, usually with the intent to steal or commit a violent act.; "Someone broke in while I was on vacation"; "They broke into my car and stole my radio!"; "who broke into my account last night?" |
| v. (emotion) | 19. break up, collapse, crack, crack up, crock up | suffer a nervous breakdown. |
| ~ suffer, sustain, have, get | undergo (as of injuries and illnesses).; "She suffered a fracture in the accident"; "He had an insulin shock after eating three candy bars"; "She got a bruise on her leg"; "He got his arm broken in the scuffle" |
| v. (communication) | 20. crack | tell spontaneously.; "crack a joke" |
| ~ recount, narrate, tell, recite | narrate or give a detailed account of.; "Tell what happened"; "The father told a story to his child" |
| v. (change) | 21. crack | cause to become cracked.; "heat and light cracked the back of the leather chair" |
| ~ alter, change, modify | cause to change; make different; cause a transformation.; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue" |
| ~ crack, check, break | become fractured; break or crack on the surface only.; "The glass cracked when it was heated" |
| ~ chink, check | make cracks or chinks in.; "The heat checked the paint" |
| ~ fissure | break into fissures or fine cracks. |
| v. (change) | 22. crack | reduce (petroleum) to a simpler compound by cracking. |
| ~ chemical science, chemistry | the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions. |
| ~ decompose, break down, break up | separate (substances) into constituent elements or parts. |
| ~ crack | break into simpler molecules by means of heat.; "The petroleum cracked" |
| v. (change) | 23. crack | break into simpler molecules by means of heat.; "The petroleum cracked" |
| ~ chemical science, chemistry | the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions. |
| ~ change | undergo a change; become different in essence; losing one's or its original nature.; "She changed completely as she grew older"; "The weather changed last night" |
| adj. | 24. a-one, ace, crack, first-rate, super, tiptop, top-notch, topnotch, tops | 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" |
| ~ colloquialism | a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech. |
| ~ superior | of high or superior quality or performance.; "superior wisdom derived from experience"; "superior math students" |
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