/kɹæk/
noun
A thin and usually jagged space opened in a previously solid material.A narrow opening.A sharply humorous comment; a wisecrack.Crack cocaine, a potent, relatively cheap, addictive variety of cocaine; often a rock, usually smoked through a crack-pipe.The sharp sound made when solid material breaks.Any sharp sound.A sharp, resounding blow.An attempt at something.Vagina.The space between the buttocks.Conviviality; fun; good conversation, chat, gossip, or humorous storytelling; good company.Business; events; news.A program or procedure designed to circumvent restrictions or usage limits on software.(elsewhere throughout the North of the UK) a meaningful chat.Extremely silly, absurd or off-the-wall ideas or prose.The tone of voice when changed at puberty.A mental flaw; a touch of craziness; partial insanity.A crazy or crack-brained person.A boast; boasting.Breach of chastity.A boy, generally a pert, lively boy.A brief time; an instant; a jiffy.verb
To form cracks.To break apart under pressure.To become debilitated by psychological pressure.To break down or yield, especially under interrogation or torture.To make a cracking sound.(of a voice) To change rapidly in register.(of a pubescent boy's voice) To alternate between high and low register in the process of eventually lowering.To make a sharply humorous comment.To make a crack or cracks in.To break open or crush to small pieces by impact or stress.To strike forcefully.To open slightly.To cause to yield under interrogation or other pressure. (Figurative)To solve a difficult problem. (Figurative, from cracking a nut.)To overcome a security system or a component.To cause to make a sharp sound.To tell (a joke).To break down (a complex molecule), especially with the application of heat: to pyrolyse.To circumvent software restrictions such as regional coding or time limits.To open a canned beverage, or any packaged drink or food.To brag, boast.To be ruined or impaired; to fail.