go out vs step out

go out and step out both are verbs.

Word	Noun	Adjective	Verb	Adverb
go out	No	No	Yes	No
step out	No	No	Yes	No

As verbs, step out is a hyponym of go out; that is, step out is a word with a more specific, narrower meaning than go out:

Other hyponyms of go out include depart, go, go away, pop out, file out, get off, hop out, fall out, get off, eject, undock, log off, log out.

go out (verb)	step out (verb)
become extinguished	go outside a room or building for a short period of time
move out of or depart from
take the field
leave the house to go somewhere
date regularly; have a steady relationship with
go out of fashion; become unfashionable