buzz off vs go away

buzz off and go away both are verbs.

Word	Noun	Adjective	Verb	Adverb
buzz off	No	No	Yes	No
go away	No	No	Yes	No

As verbs, go away is a hypernym of buzz off; that is, go away is a word with a broader meaning than buzz off:

Other hypernyms of buzz off include go forth, leave.

buzz off (verb)	go away (verb)
leave immediately; used usually in the imperative form	get lost, as without warning or explanation
	go away from a place
	move away from a place into another direction
	become invisible or unnoticeable