set forth vs roar off

set forth and roar off both are verbs.

Word	Noun	Adjective	Verb	Adverb
set forth	No	No	Yes	No
roar off	No	No	Yes	No

As verbs, roar off is a hyponym of set forth; that is, roar off is a word with a more specific, narrower meaning than set forth:

Other hyponyms of set forth include lift off, take off, blaze, blaze out, sally forth, sally out.

set forth (verb)	roar off (verb)
state	leave at high speed making a loud sound
depart for someplace