gangster's moll vs malefactor

gangster's moll and malefactor both are nouns.

Word	Noun	Adjective	Verb	Adverb
gangster's moll	Yes	No	No	No
malefactor	Yes	No	No	No

As nouns, malefactor is a hypernym of gangster's moll; that is, malefactor is a word with a broader meaning than gangster's moll:

gangster's moll: the girlfriend of a gangster
malefactor: someone who has committed a crime or has been legally convicted of a crime

Other hypernyms of gangster's moll include criminal, crook, felon, outlaw.

gangster's moll (noun)	malefactor (noun)
the girlfriend of a gangster	someone who has committed a crime or has been legally convicted of a crime