1. excellent or very good
Usage: British informal

1. the process of breaking or splitting
2. a chemical process that breaks down large molecules into smaller ones
Usage: chemistry

1. present participle of crack; breaking or splitting something

Examples

• The ice was cracking under the weight.
• She heard a cracking sound from the old floorboards.
• The cracking of the whip startled the horses.
• Oil refining involves cracking heavy hydrocarbons.
• That was a cracking good movie!
• The paint is cracking on the old fence.
• We had a cracking time at the party.