Crack (noun)

1. A narrow opening or fissure in a solid material, caused by breaking or splitting.
2. A brief, sharp noise.
3. A sudden, loud explosion.
4. A highly addictive form of cocaine.
5. A trial or attempt to achieve something.

Origin:

The word "crack" comes from the middle english word "cracke", meaning "a loud, sharp noise". the term was first used in the 14th century to describe a break or split in a solid material.

Examples:

1. There was a crack in the wall.
2. The sound of the whip was followed by a crack.
3. The crack of thunder was so loud it woke her up.
4. Crack is a highly addictive and dangerous drug.
5. She took a crack at the puzzle but couldn't solve it.