get going vs set out

get going and set out both are verbs.

Word	Noun	Adjective	Verb	Adverb
get going	No	No	Yes	No
set out	No	No	Yes	No

As verbs, set out is a hypernym of get going; that is, set out is a word with a broader meaning than get going:

Other hypernyms of get going include begin, commence, get, get down, set about, start, start out.

get going (verb)	set out (verb)
start to be active	take the first step or steps in carrying out an action
begin or set in motion	lay out orderly or logically in a line or as if in a line
	depart for someplace