protrude vs overhang

protrude is not a noun while overhang is a noun.

Word	Noun	Adjective	Verb	Adverb
protrude	No	No	Yes	No
overhang	Yes	No	Yes	No

As verbs, overhang is a hyponym of protrude; that is, overhang is a word with a more specific, narrower meaning than protrude:

Other hyponyms of protrude include push up, thrust, spear, spear up, bag, bulge, cantilever.

protrude (noun)	overhang (noun)
	projection that extends beyond or hangs over something else

protrude (verb)	overhang (verb)
swell or protrude outwards	be suspended over or hang over
bulge outward	project over
extend out or project in space