driving license vs American spelling

driving license and American spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
driving license	Yes	No	No	No
American spelling	Yes	No	No	No

driving license (noun)	American spelling (noun)
a license authorizing the bearer to drive a motor vehicle	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')