A thin and usually jagged space opened in a previously solid material.
A narrow opening.
A sharply humorous comment; a wisecrack.
(slang) Crack is a potent and addictive form of cocaine, often smoked through a crack-pipe, and can also refer to something good-tasting or habit-forming.
(onomatopoeia) The sharp sound made when solid material breaks.
(onomatopoeia) Any sharp sound.
A sharp, resounding blow.
(informal) An attempt at something.
(vulgar, slang) The vagina.
(informal) The space between the buttocks.
(Northern England, Scotland, Ireland) Conviviality; fun; good conversation, chat, gossip, or humorous storytelling; good company.
(Northern England, Scotland, Ireland) Business; events; news.
(computing) A program or procedure designed to circumvent restrictions or usage limits on software.
(Cumbria, elsewhere throughout the North of the UK) a meaningful chat.
(Internet slang) Extremely silly, absurd or off-the-wall ideas or prose.
The tone of voice when changed at puberty.
(intransitive) To form cracks.
(intransitive) To break apart under force, stress, or pressure.
(intransitive) To become debilitated by psychological pressure.
(intransitive) To break down or yield, especially under interrogation or torture.
(intransitive) To make a cracking sound.
(intransitive, of a voice) To change rapidly in register.
(intransitive, of a pubescent boy's voice) To alternate between high and low register in the process of eventually lowering.
(intransitive) To make a sharply humorous comment.
(intransitive, LGBT, slang) To realize that one is transgender.
(transitive) To make a crack or cracks in.
(transitive) To break open or crush to small pieces by impact or stress.
(transitive) To strike forcefully.
(transitive) To open slightly.
(transitive, figurative) To cause to yield under interrogation or other pressure.
(transitive, figurative) To solve a difficult problem.
(transitive) To overcome a security system or component.
(transitive) To cause to make a sharp sound.
(transitive) To tell (a joke).
(transitive, chemistry) To break down (a complex molecule), especially with the application of heat: to pyrolyse.
(transitive, computing) To circumvent software restrictions such as regional coding or time limits.
(transitive, informal) To open a canned beverage, or any packaged drink or food.
(colloquial) To barely reach or attain (a measurement or extent).
Highly trained and competent.
Excellent, first-rate, superior, top-notch.