American spelling vs goiter

American spelling and goiter both are nouns.

Word	Noun	Adjective	Verb	Adverb
American spelling	Yes	No	No	No
goiter	Yes	No	No	No

American spelling (noun)	goiter (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	abnormally enlarged thyroid gland; can result from underproduction or overproduction of hormone or from a deficiency of iodine in the diet