perv vs sadomasochist

perv and sadomasochist both are nouns.

Word	Noun	Adjective	Verb	Adverb
perv	Yes	No	Yes	No
sadomasochist	Yes	No	No	No

As nouns, sadomasochist is a hyponym of perv; that is, sadomasochist 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
sadomasochist: someone who enjoys both sadism and masochism

perv (noun)	sadomasochist (noun)
a person whose behavior deviates from what is acceptable especially in sexual behavior	someone who enjoys both sadism and masochism

perv (verb)	sadomasochist (verb)
look at with amorous intentions