prominence vs gibbousness

prominence and gibbousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
prominence	Yes	No	No	No
gibbousness	Yes	No	No	No

As nouns, prominence and gibbousness are synonyms defined as:

prominence and gibbousness: something that bulges out or is protuberant or projects from its surroundings

Other synonyms of prominence include bulge, bump, excrescence, extrusion, gibbosity, hump, jut, protrusion, protuberance, swelling.

prominence (noun)	gibbousness (noun)
relative importance or fame	something that bulges out or is protuberant or projects from its surroundings
something that bulges out or is protuberant or projects from its surroundings
the state of being prominent: widely known or eminent