Meaning trap
let off
release or fire
to cause something, such as a bomb, gun, or firework, to explode or shoot
Don't mix these meanings
Same phrase, different job.
to cause something, such as a bomb, gun, or firework, to explode or shoot
Another meaning of 'let off' is 'not punish'; compare the examples to keep the meanings separate.
Hear it in context
Notice where the phrase sounds natural.
Someone let off fireworks in the street to celebrate the festival.
During New Year's Eve, people in my country often let off fireworks to welcome the new year.
Fix the pattern
One small grammar move makes it sound right.
Not: They let off with fireworks.
Say: They let off fireworks.
'Let off + thing' directly — don't add 'with'.
Which sounds natural?
Tap the one a native speaker would say.
'Let off' is the natural verb for setting off fireworks or a gun. 'Discharged' is formal/technical.
Build natural chunks
Words that usually travel with it.
let off
- fireworks
- a banger
- a round
- steam
Don't confuse it
Related
Other meanings and phrases to compare.
- let off (not punish) — Another meaning of 'let off' is 'not punish'; compare the examples to keep the meanings separate.