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Related to let off: let off steam, let off the hook
let someone (get) off (something)
to permit someone to disembark, dismount, or leave something. Please move and let me get off the bus. Let her off!
let someone off (easy)and let someone off
to release or dismiss someone without punishment. The judge didn't let me off easy. The judge let off Mary with a warning.
let something off
to release something; to give something off. The engine let some evil smelling smoke off. The flower let off a wonderful smell.
1. Release by exploding; see blow off steam.
2. 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.
1. To allow someone to disembark from a vehicle: My house is just down the street, but you can let me off at the corner. The bus driver let off the passengers at the terminal.
2. To excuse or pardon someone from something unpleasant, as punishment or work: I'm going to let you off this once, but if I catch you cheating again, you're going to be expelled. The police arrested the leader and let off the rest of the gang with only a warning.
3. To emit something, as heat, gas, or sound: The stove lets off a lot of heat.
4. To detonate or discharge something: The police officer let off a warning shot. We let a firecracker off in the park.