Synonyms of 'string someone up'
If someone is hanged or if they hang, they are killed, usually as a punishment, by having a rope tied around their neck and the support taken away from under their feet.
The five were expected to be hanged at 7 am on Tuesday.
If an angry crowd of people lynch someone, they kill that person by hanging them, without letting them have a trial, because they believe that that person has committed a crime.
They were about to lynch him when reinforcements arrived.
Thesaurus for string someone up from the Collins English Thesaurus