chicken soup vs soup

chicken soup and soup both are nouns.

Word	Noun	Adjective	Verb	Adverb
chicken soup	Yes	No	No	No
soup	Yes	No	Yes	No

As nouns, soup is a hypernym of chicken soup; that is, soup is a word with a broader meaning than chicken soup:

chicken soup: soup made from chicken broth
soup: liquid food especially of meat or fish or vegetable stock often containing pieces of solid food

chicken soup (noun)	soup (noun)
soup made from chicken broth	liquid food especially of meat or fish or vegetable stock often containing pieces of solid food
	an unfortunate situation
	any composition having a consistency suggestive of soup

chicken soup (verb)	soup (verb)
	dope (a racehorse)