American cheese vs cheddar

American cheese and cheddar both are nouns.

Word	Noun	Adjective	Verb	Adverb
American cheese	Yes	No	No	No
cheddar	Yes	No	No	No

As nouns, American cheese and cheddar are synonyms defined as:

American cheese and cheddar: hard smooth-textured cheese; originally made in Cheddar in southwestern England

Other synonyms of American cheese include Armerican cheddar, cheddar cheese.

American cheese (noun)	cheddar (noun)
hard smooth-textured cheese; originally made in Cheddar in southwestern England	hard smooth-textured cheese; originally made in Cheddar in southwestern England