crack

ot noun

1. A thin and usually jagged space opened in a previously solid material. A large crack had formed in the roadway.
2. A narrow opening. Open the door a crack.
3. A sharply humorous comment; a wisecrack. I didn't appreciate that crack about my hairstyle.
4. Crack cocaine, a potent, relatively cheap, addictive variety of cocaine; often a rock, usually smoked through a crack-pipe. crack head

fe’l verb

1. To form cracks. It's been so dry, the ground is starting to crack.
2. To break apart under pressure. When I tried to stand on the chair, it cracked.
3. To become debilitated by psychological pressure. Anyone would crack after being hounded like that.
4. To break down or yield, especially under interrogation or torture. When we showed him the pictures of the murder scene, he cracked.

sifat adjective

1. Highly trained and competent. Even a crack team of investigators would have trouble solving this case.
2. Excellent, first-rate, superior, top-notch. She's a crack shot with that rifle.