misdemeanour vs infringement

misdemeanour and infringement both are nouns.

Word	Noun	Adjective	Verb	Adverb
misdemeanour	Yes	No	No	No
infringement	Yes	No	No	No

As nouns, misdemeanour and infringement are synonyms defined as:

Other synonyms of misdemeanour include infraction, misdemeanor, violation.

misdemeanour (noun)	infringement (noun)
a crime less serious than a felony	a crime less serious than a felony
	an act that disregards an agreement or a right