cockscomb vs dandy

cockscomb and dandy both are nouns.

Word	Noun	Adjective	Verb	Adverb
cockscomb	Yes	No	No	No
dandy	Yes	Yes	No	No

As nouns, dandy is a hypernym of cockscomb; that is, dandy is a word with a broader meaning than cockscomb:

cockscomb: a conceited dandy who is overly impressed by his own accomplishments
dandy: a man who is much concerned with his dress and appearance

Other hypernyms of cockscomb include beau, clotheshorse, dude, fashion plate, fop, gallant, sheik, swell.

cockscomb (noun)	dandy (noun)
the fleshy red crest on the head of the domestic fowl and other gallinaceous birds	a sailing vessel with two masts; a small mizzen is aft of the rudderpost
a cap worn by court jesters; adorned with a strip of red	a man who is much concerned with his dress and appearance
a conceited dandy who is overly impressed by his own accomplishments
garden annual with featherlike spikes of red or yellow flowers

cockscomb (adjective)	dandy (adjective)
	excellent