criminal offence vs mug

criminal offence and mug both are nouns.

Word	Noun	Adjective	Verb	Adverb
criminal offence	Yes	No	No	No
mug	Yes	No	Yes	No

criminal offence (noun)	mug (noun)
(criminal law) an act punishable by law; usually considered an evil act	with handle and usually cylindrical
	the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)
	a person who is gullible and easy to take advantage of
	the quantity that can be held in a mug

criminal offence (verb)	mug (verb)
	To stare awkwardly
	rob at gunpoint or with the threat of violence