anal intercourse vs perversion

anal intercourse and perversion both are nouns.

Word	Noun	Adjective	Verb	Adverb
anal intercourse	Yes	No	No	No
perversion	Yes	No	No	No

As nouns, perversion is a hypernym of anal intercourse; that is, perversion is a word with a broader meaning than anal intercourse:

anal intercourse: intercourse via the anus, committed by a man with a man or woman
perversion: an aberrant sexual practice

Other hypernyms of anal intercourse include sexual perversion.

anal intercourse (noun)	perversion (noun)
intercourse via the anus, committed by a man with a man or woman	the action of perverting something (turning it to a wrong use)
	an aberrant sexual practice
	a curve that reverses the direction of something