protrusion vs mogul

protrusion and mogul both are nouns.

Word	Noun	Adjective	Verb	Adverb
protrusion	Yes	No	No	No
mogul	Yes	No	No	No

As nouns, mogul is a hyponym of protrusion; that is, mogul is a word with a more specific, narrower meaning than protrusion:

protrusion: something that bulges out or is protuberant or projects from its surroundings
mogul: a bump on a ski slope

Other hyponyms of protrusion include frontal eminence, occipital protuberance, belly, caput, nub, nubble, snag, wart.

protrusion (noun)	mogul (noun)
the act of projecting out from something	a very wealthy or powerful businessman
something that bulges out or is protuberant or projects from its surroundings	a bump on a ski slope