sealed vs Commonwealth of Australia

sealed is not a noun while Commonwealth of Australia is a noun.

Word	Noun	Adjective	Verb	Adverb
sealed	No	Yes	No	No
Commonwealth of Australia	Yes	No	No	No

sealed (noun)	Commonwealth of Australia (noun)
	a nation occupying the whole of the Australian continent; Aboriginal tribes are thought to have migrated from southeastern Asia 20,000 years ago; first Europeans were British convicts sent there as a penal colony

sealed (adjective)	Commonwealth of Australia (adjective)
closed or secured with or as if with a seal
established irrevocably
undisclosed for the time being
determined irrevocably
apply a non-porous coating to something so as to ensure it is impervious
covered with a waterproof coating
(of walls) covered with a coat of plaster