chilly vs chili

chilly and chili both are nouns.

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

As nouns, chilly and chili are synonyms defined as:

chilly and chili: very hot and finely tapering pepper of special pungency

Other synonyms of chilly include chile, chili pepper, chilli.

chilly (noun)	chili (noun)
very hot and finely tapering pepper of special pungency	very hot and finely tapering pepper of special pungency
	ground beef and chili peppers or chili powder often with tomatoes and kidney beans

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