let off

verb

1. (also preposition) to allow to disembark or leave

2. to explode or fire (a bomb, gun, etc)

3. (also preposition) to excuse from (work or other responsibilities)

   I'll let you off for a week

4. to allow to get away without the expected punishment, work, etc

5. to let (accommodation) in portions

6. to release (liquid, air, etc)

7. See steam

8. to give (a light punishment) to someone

Idioms and Phrases

Release by exploding; see blow off steam .

Allow to go free or escape; excuse from punishment. For example, They let her off from attending graduation , or The headmaster let him off with a reprimand . [Early 1800s] Also see off the hook .