- 1the part of a rope, etc. that is hanging loosely There's too much slack in the tow rope.
- 2people, money, or space that should be used more fully in an organization There's very little slack in the budget.
- 3very small pieces of coal see slacks Idioms
- 1to improve the way money or people are used in an organization
- 2to pull on a rope, etc. until it is tight We took up the slack and then pulled as hard as we could.
to be less critical of someone or less strict with them Hey, cut him some slack! He's doing his best!
Check pronunciation: slack