perv vs child molester

perv and child molester both are nouns.

Word	Noun	Adjective	Verb	Adverb
perv	Yes	No	Yes	No
child molester	Yes	No	No	No

As nouns, child molester is a hyponym of perv; that is, child molester is a word with a more specific, narrower meaning than perv:

perv: a person whose behavior deviates from what is acceptable especially in sexual behavior
child molester: a man who has sex (usually sodomy) with a boy as the passive partner

perv (noun)	child molester (noun)
a person whose behavior deviates from what is acceptable especially in sexual behavior	a man who has sex (usually sodomy) with a boy as the passive partner

perv (verb)	child molester (verb)
look at with amorous intentions