misdemeanor vs infringement

misdemeanor and infringement both are nouns.

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

As nouns, misdemeanor and infringement are synonyms defined as:

Other synonyms of misdemeanor include infraction, misdemeanour, violation.

misdemeanor (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