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

geological fault, fault, fracture, break, 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"

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

crater, volcanic crater - a bowl-shaped opening at the top of a volcano

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

imprint, impression, depression - a concavity in a surface produced by pressing; "he left the impression of his fingers in the soft mud"

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"

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"

comment, remark - a statement that expresses a personal opinion or belief; "from time to time she contributed a personal comment on his account"

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

cocain, cocaine - a narcotic (alkaloid) extracted from coca leaves; used as a surface anesthetic or taken for pleasure; can become powerfully addictive

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"

breaking, breakage, break - the act of breaking something; "the breakage was unavoidable"

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"

sound, go - make a certain noise or sound; "She went `Mmmmm'"; "The gun went `bang'"

sound, go - make a certain noise or sound; "She went `Mmmmm'"; "The gun went `bang'"

hit - deal a blow to, either with the hand or with an instrument; "He hit her hard in the face"

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"

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 - of paint, varnish, or the like: to crack and acquire the appearance of alligator hide, as from weathering or improper application

come apart, break, split up, fall apart, separate - become separated into pieces or fragments; "The figurine broke"; "The freshly baked loaf fell apart"

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"

recount, narrate, tell, recite - narrate or give a detailed account of; "Tell what happened"; "The father told a story to his child"

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

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

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"

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"