1 [countable] a crime or illegal activity for which there is a punishment
motoring/firearms/public order offences
criminal offence: Killing these animals is a criminal offence.
minor offence: minor offences such as vandalism
commit an offence: She had committed no offence under military law.
convict someone of an offence: Walker was convicted of a similar offence in 1997.
first/second etc offence: The usual fine is £15 to £100 for a first offence.
be charged with an offence: Those arrested have been charged with public order offences.
Synonyms and related words