pinnacle vs top

pinnacle and top both are nouns.

Word	Noun	Adjective	Verb	Adverb
pinnacle	Yes	No	Yes	No
top	Yes	Yes	Yes	No

As nouns, top is a hypernym of pinnacle; that is, top is a word with a broader meaning than pinnacle:

Other hypernyms of pinnacle include crest, crown, peak, summit, tip.

As nouns, pinnacle and top are synonyms defined as:

pinnacle and top: the highest level or degree attainable; the highest stage of development

Other synonyms of pinnacle include acme, elevation, height, meridian, peak, summit, superlative, tiptop.

pinnacle (noun)	top (noun)
(architecture) a slender upright spire at the top of a buttress or tower	a garment (especially for women) that extends from the shoulders to the waist or hips
a lofty peak	covering for a hole (especially a hole in the top of a container)
the highest level or degree attainable; the highest stage of development	a canvas tent to house the audience at a circus performance
	a conical child's plaything tapering to a steel point on which it can be made to spin
	platform surrounding the head of a lower mast
	the greatest possible intensity
	the highest or uppermost side of anything
	the upper part of anything
	the top or extreme point of something (usually a mountain or hill)
	the highest level or degree attainable; the highest stage of development
	the first half of an inning; while the visiting team is at bat

pinnacle (adjective)	top (adjective)
	situated at the top or highest position

pinnacle (verb)	top (verb)
raise on or as if on a pinnacle	be the culminating event
surmount with a pinnacle	finish up or conclude
	cut the top off
	strike (the top part of a ball in golf, baseball, or pool) giving it a forward spin
	pass by, over, or under without making contact
	reach or ascend the top of
	provide with a top or finish the top (of a structure)
	be superior or better than some standard
	be at the top of or constitute the top or highest point
	be ahead of others; be the first