crown vs peak

crown and peak both are nouns.

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

As nouns, peak is a hypernym of crown; that is, peak is a word with a broader meaning than crown:

Other hypernyms of crown include acme, apex, vertex.

As nouns, crown and peak are synonyms defined as:

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

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

crown (noun)	peak (noun)
the part of a hat (the vertex) that covers the crown of the head	a brim that projects to the front to shade the eyes
an ornamental jeweled headdress signifying sovereignty	the top or extreme point of something (usually a mountain or hill)
a wreath or garland worn on the head to signify victory	the highest point (of something)
the center of a cambered road	the most extreme possible amount or value
(dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth	a V shape
the part of a tooth above the gum that is covered with enamel	the highest level or degree attainable; the highest stage of development
the top of the head	the period of greatest prosperity or productivity
the award given to the champion
the top or extreme point of something (usually a mountain or hill)
the upper branches and leaves of a tree or other plant
an English coin worth 5 shillings

crown (verb)	peak (verb)
be the culminating event	to reach the highest point; attain maximum intensity, activity
put an enamel cover on
invest with regal power; enthrone
form the topmost part of