green pea soup vs soup

green pea soup and soup both are nouns.

Word	Noun	Adjective	Verb	Adverb
green pea soup	Yes	No	No	No
soup	Yes	No	Yes	No

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

green pea soup: made of fresh green peas and stock with shredded lettuce onion and celery
soup: liquid food especially of meat or fish or vegetable stock often containing pieces of solid food

green pea soup (noun)	soup (noun)
made of fresh green peas and stock with shredded lettuce onion and celery	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

green pea soup (verb)	soup (verb)
	dope (a racehorse)