infraction vs crime

infraction and crime both are nouns.

Word	Noun	Adjective	Verb	Adverb
infraction	Yes	No	No	No
crime	Yes	No	No	No

As nouns, crime is a hypernym of infraction; that is, crime is a word with a broader meaning than infraction:

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

Other hypernyms of infraction include criminal offence, criminal offense, law-breaking.

infraction (noun)	crime (noun)
a crime less serious than a felony	(criminal law) an act punishable by law; usually considered an evil act
	an evil act not necessarily punishable by law