stick out vs bulge

stick out is not a noun while bulge is a noun.

Word	Noun	Adjective	Verb	Adverb
stick out	No	No	Yes	No
bulge	Yes	No	Yes	No

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

Other hyponyms of stick out include overhang, push up, thrust, spear, spear up, bag, cantilever.

stick out (noun)	bulge (noun)
	something that bulges out or is protuberant or projects from its surroundings

stick out (verb)	bulge (verb)
put up with something or somebody unpleasant	swell or protrude outwards
extend out or project in space	cause to bulge or swell outwards
be highly noticeable	bulge outward
	bulge out; form a bulge outward, or be so full as to appear to bulge