chilly vs jalapeno

chilly and jalapeno both are nouns.

Word	Noun	Adjective	Verb	Adverb
chilly	Yes	Yes	No	No
jalapeno	Yes	No	No	No

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

Other hyponyms of chilly include jalapeno pepper, cayenne, cayenne pepper.

chilly (noun)	jalapeno (noun)
very hot and finely tapering pepper of special pungency	hot green or red pepper of southwestern United States and Mexico
	plant bearing very hot and finely tapering long peppers; usually red

chilly (adjective)	jalapeno (adjective)
appreciably or disagreeably cold
not characterized by emotion
lacking warmth of feeling