Synonyms of 'let something off'
▷ See let
1 fireDictionary, explode, set off
He had let off fireworks to celebrate the Revolution.
2 emitDictionary, release, leak
They must do it without letting off any fumes.
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The terrorists planted and detonated the bomb.
If someone discharges a gun, they fire it.
He was tried for unlawfully and dangerously discharging a weapon.
Thesaurus for let something off from the Collins English Thesaurus