cohort vs young

cohort and young both are nouns.

Word	Noun	Adjective	Verb	Adverb
cohort	Yes	No	No	No
young	Yes	Yes	No	No

As nouns, young is a hyponym of cohort; that is, young is a word with a more specific, narrower meaning than cohort:

Other hyponyms of cohort include aged, elderly, youth.

cohort (noun)	young (noun)
a band of warriors (originally a unit of a Roman Legion)	any immature animal
a company of companions or supporters	young people collectively
a group of people having approximately the same age

cohort (adjective)	young (adjective)
	(used of living things especially persons) in an early period of life or development or growth
	(of crops) harvested at an early stage of development; before complete maturity
	not tried or tested by experience
	being in its early stage
	suggestive of youth; vigorous and fresh