outcropping vs outcrop

outcropping and outcrop both are nouns.

Word	Noun	Adjective	Verb	Adverb
outcropping	Yes	No	No	No
outcrop	Yes	No	Yes	No

As nouns, outcropping and outcrop are synonyms defined as:

outcropping and outcrop: the part of a rock formation that appears above the surface of the surrounding land

Other synonyms of outcropping include rock outcrop.

outcropping (noun)	outcrop (noun)
the part of a rock formation that appears above the surface of the surrounding land	the part of a rock formation that appears above the surface of the surrounding land

outcropping (verb)	outcrop (verb)
	appear on the surface, come to the surface on the ground