fellate vs go down on

fellate and go down on both are verbs.

Word	Noun	Adjective	Verb	Adverb
fellate	No	No	Yes	No
go down on	No	No	Yes	No

As verbs, fellate and go down on are synonyms defined as:

fellate and go down on: provide sexual gratification through oral stimulation

Other synonyms of fellate include blow, suck.

fellate (verb)	go down on (verb)
provide sexual gratification through oral stimulation	provide sexual gratification through oral stimulation