set forth vs start out

set forth and start out both are verbs.

Word	Noun	Adjective	Verb	Adverb
set forth	No	No	Yes	No
start out	No	No	Yes	No

As verbs, set forth and start out are synonyms defined as:

Other synonyms of set forth include depart, part, set off, set out, start, take off.

set forth (verb)	start out (verb)
state	take the first step or steps in carrying out an action
depart for someplace	depart for someplace