chili vs chili con carne

chili and chili con carne both are nouns.

Word	Noun	Adjective	Verb	Adverb
chili	Yes	No	No	No
chili con carne	Yes	No	No	No

As nouns, chili and chili con carne are synonyms defined as:

chili and chili con carne: ground beef and chili peppers or chili powder often with tomatoes and kidney beans

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