corn chowder vs chowder

corn chowder and chowder both are nouns.

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

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

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

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