vichyssoise vs soup

vichyssoise and soup both are nouns.

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

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

vichyssoise: a creamy potato soup flavored with leeks and onions; usually served cold
soup: liquid food especially of meat or fish or vegetable stock often containing pieces of solid food

vichyssoise (noun)	soup (noun)
a creamy potato soup flavored with leeks and onions; usually served cold	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

vichyssoise (verb)	soup (verb)
	dope (a racehorse)