crowning vs ultimate

crowning is not a noun while ultimate is a noun.

Word	Noun	Adjective	Verb	Adverb
crowning	No	Yes	No	No
ultimate	Yes	Yes	No	No

crowning (noun)	ultimate (noun)
	the finest or most superior quality of its kind

crowning (adjective)	ultimate (adjective)
forming or providing a crown or summit	furthest or highest in degree or order; utmost or extreme
representing a level of the highest possible achievement or attainment	being the last or concluding element of a series