misdemeanour vs law-breaking

misdemeanour and law-breaking both are nouns.

Word	Noun	Adjective	Verb	Adverb
misdemeanour	Yes	No	No	No
law-breaking	Yes	No	No	No

As nouns, law-breaking is a hypernym of misdemeanour; that is, law-breaking is a word with a broader meaning than misdemeanour:

misdemeanour: a crime less serious than a felony
law-breaking: (criminal law) an act punishable by law; usually considered an evil act

Other hypernyms of misdemeanour include crime, criminal offence, criminal offense.

misdemeanour (noun)	law-breaking (noun)
a crime less serious than a felony	(criminal law) an act punishable by law; usually considered an evil act