clam chowder vs chowder

clam chowder and chowder both are nouns.

Word	Noun	Adjective	Verb	Adverb
clam chowder	Yes	No	No	No
chowder	Yes	No	No	No

As nouns, chowder is a hypernym of clam chowder; that is, chowder is a word with a broader meaning than clam chowder:

clam chowder: chowder containing clams
chowder: a thick soup or stew made with milk and bacon and onions and potatoes

clam chowder (noun)	chowder (noun)
chowder containing clams	a thick soup or stew made with milk and bacon and onions and potatoes