
1) Ace 2) Adept 3) A-one 4) Aperture 5) Attempt 6) Blow 7) Break 8) Broke 9) Cranny 10) Crater 11) Crevasse 12) Crevice 13) Damage 14) Decipher 15) Decode 16) Discontinuity 17) Effort 18) Fissure 19) Fling 20) Fracture 21) Furrow 22) Gap 23) Hole 24) Interval 25) Lacuna 26) Mar 27) Noise 28) Open 29) Opening
Found on
https://www.crosswordclues.com/clue/crack

1) Aperture 2) Become fractured 3) Break 4) Break or split partially 5) British slang for first-rate 6) British slang for the anus 7) Cause to become cracked 8) China flaw 9) Chink 10) Cleft 11) Cocaine 12) Crevice 13) Crystalline form of cocaine 14) Dawn sound 15) Down or pot 16) Exclusively Saxon word
Found on
https://www.crosswordclues.com/clue/crack

- a long narrow opening
- a narrow opening
- a long narrow depression in a surface
- a sudden sharp noise
- (informal) a chance to do something
- witty remark
- a mark left after a small piece has been chopped or broken off of something
- a purified and potent form of cocaine that is smoked rather than snorted
- a usually brief attempt
...
Found on

• (n.) Rupture; flaw; breach, in a moral sense. • (n.) Breach of chastity. • (v. i.) To utter vain, pompous words; to brag; to boast; -- with of. • (v. t.) To cry up; to extol; -- followed by up. • (n.) Free conversation; friendly chat. • (n.) Mental flaw; a touch of craziness; partial insanity; as, he has a crack. &bu...
Found on
http://thinkexist.com/dictionary/meaning/crack/

(F fissure, R crapatura) Linear discontinuity produced by fracture (BS 499). Elongated narrow opening. Synonyms can include: break, split, fracture, fissure, separation, cleavage, in various applications
Found on
http://www.angelfire.com/biz/BuildingPathology/BldngPathGlsry.html

(from the article `cocaine`) ...or smoked in a chemically treated form known as freebase; either of these methods produces a markedly more compulsive use of the drug. In the ...
Found on
http://www.britannica.com/eb/a-z/c/154

disruption in the material without material loss NOTE - See figure 806-17.
Found on
http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=806-15-116

A fissure or fracture. Caused by the effects of stress on weak or weakened parts of a material. ... To break a large, complex compound into simpler compounds. ... To open something slightly. ... A narcotic drug illegal in most countries which is a cheaper, more addictive, smokeable version of cocaine (another illegal narcotic) with more adverse eff...
Found on
http://www.encyclo.co.uk/local/20973
Crack (krăk)
transitive verb [
imperfect & past participle Cracked (krăkt);
present participle & verbal noun Cracking .] [ Middle English
cracken ,
craken , to crack, break, boast, Anglo-Saxon
cracian ,
...Found on
http://www.encyclo.co.uk/webster/C/179
Crack adjective Of superior excellence; having qualities to be boasted of. [ Colloq.] « One of our
crack speakers in the Commons.
Dickens. »
Found on
http://www.encyclo.co.uk/webster/C/179
Crack intransitive verb 1. To burst or open in chinks; to break, with or without quite separating into parts. « By misfortune it
cracked in the coling.
Boyle. » « The mirror
cracked from side to side.
Tennyson. »
2. To be ruined...
Found on
http://www.encyclo.co.uk/webster/C/179
Crack noun 1. 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.
2. Rupture; flaw; breach, in a moral sense. « My love to thee is sound, sans
crack ...
Found on
http://www.encyclo.co.uk/webster/C/179

Crack is the crystalline form of cocaine.
Found on
http://www.probertencyclopaedia.com/browse/GC.HTM

Crack is slang for to hit someone.
Found on
http://www.probertencyclopaedia.com/browse/ZCA.HTM

A separation or fracture occurring in a roof membrane or roof deck, generally caused by thermal induced stress or substrate movement.
Found on
http://www.rbroof.com/glossary-of-terms

A break, split, fracture, fissure, separation, cleavage, or elongated narrow opening, however caused, visible without magnification to the human eye and extending from the surface into the stone, through the grain, matrix, or vein.
Found on
http://www.selectstone.com/architectural-resources/stone-glossary/

any fracture or rift in floating ice not sufficiently wide to be described as a lead.
Found on
https://nsidc.org/cryosphere/glossary?page=4

A line on the rock which has split. Crack climbing is quite popular.
Found on
https://rockclimbingcentral.com/rock-climbing-glossary-217-climbing-terms-y

A longitudinal discontinuity produced by fracture. Cracks may be longitudinal, transverse, edge, crater, centre line, fusion zone underhead, weld metal or parent metal.
Found on
https://www.encyclo.co.uk/local/20500

A fracture type discontinuity characterized by a sharp tip and high ratio of length and width to opening displacement. See also: Fracture Toughness.
Found on
https://www.encyclo.co.uk/local/20687
noun a purified and potent form of cocaine that is smoked rather than snorted
Found on
https://www.encyclo.co.uk/local/20974
cracking noun a sudden sharp noise; `the crack of a whip`; `he heard the cracking of the ice`; `he can hear the snap of a twig`
Found on
https://www.encyclo.co.uk/local/20974

A break, split, fracture, fissure, separation, cleavage, or elongated narrow opening, however caused, visible without magnification to the human eye and extending from the surface into the stone that must extend through the grain or matrix.
Found on
https://www.encyclo.co.uk/local/22191

A rupture occurring in a casting at or just below the solidifying temperature by a pulling apart of the soft metal, caused by thermal contraction stresses.
Found on
https://www.metaltek.com/resources/glossary/

A fissure in a rock wall, typically used for hand- and footholds while climbing. Can be paper-thin to larger than body size.
Found on
https://www.rei.com/learn/expert-advice/rock-climbing-glossary.html
No exact match found.