Oxford Advanced American Dictionary

Definition of offence noun from the Oxford Advanced Learner's Dictionary

Oxford3000

offence

noun (especially US offense)
offence pronunciation English əˈfens offence pronunciation American əˈfens
 
1 [countable] offence (against somebody/something) an illegal act
Synonym
crime
a criminal/serious/minor/sexual, etc. offencea first offence (= the first time that somebody has been found guilty of a crime)a capital offence (= one for which somebody may be punished by death)He was not aware that he had committed an offence.an offence against society/humanity/the stateNew legislation makes it an offence to carry guns.
2 [uncountable] the act of upsetting or insulting somebodyI'm sure he meant no offence when he said that.The photo may cause offence to some people.No one will take offence (= feel upset or insulted) if you leave early.Don't be so quick to take offence.
Idioms

no offence

(informal) used to say that you do not mean to upset or insult somebody by something you say or doNo offence, but I'd really like to be on my own.