let off
phrasal verb
let off;
letting off;
lets off
Definition of let off
1
: to allow (someone) to get off a bus, an airplane, etc.
Could you let me off (the bus) at the next stop, please? The bus stopped to let off a few passengers.
2
: to allow (someone who has been caught doing something wrong or illegal) to go without being punished
The police officer let her off with just a warning. They let him off easy/easily/lightly, if you ask me.
3
: to cause (something) to explode or to be released in a forceful way
let off a firecracker opened the valve to let off pressure