peak vs top

peak and top both are nouns.

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

As nouns, peak and top are synonyms defined as:

peak and top: the top or extreme point of something (usually a mountain or hill)

Other synonyms of peak include crest, crown, summit, tip.

As nouns, peak and top are synonyms defined as:

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

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

peak (noun)	top (noun)
a brim that projects to the front to shade the eyes	a garment (especially for women) that extends from the shoulders to the waist or hips
the top or extreme point of something (usually a mountain or hill)	covering for a hole (especially a hole in the top of a container)
the highest point (of something)	a canvas tent to house the audience at a circus performance
the most extreme possible amount or value	a conical child's plaything tapering to a steel point on which it can be made to spin
a V shape	platform surrounding the head of a lower mast
the highest level or degree attainable; the highest stage of development	the greatest possible intensity
the period of greatest prosperity or productivity	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

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

peak (verb)	top (verb)
to reach the highest point; attain maximum intensity, activity	be the culminating event
	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