extraordinary vs grand

extraordinary is not a noun while grand is a noun.

Word	Noun	Adjective	Verb	Adverb
extraordinary	No	Yes	No	No
grand	Yes	Yes	No	No

extraordinary (noun)	grand (noun)
	a piano with the strings on a horizontal harp-shaped frame; usually supported by three legs
	the cardinal number that is the product of 10 and 100

extraordinary (adjective)	grand (adjective)
beyond what is ordinary or usual; highly unusual or exceptional or remarkable; special	used of a person's appearance or behavior; befitting an eminent person
far more than usual or expected	extraordinarily good or great; used especially as intensifiers
(of an official) serving an unusual or special function in addition to those of the regular officials	the most important and magnificent in adornment
	of behavior that is impressive and ambitious in scale or scope
	large and impressive in physical size or extent
	of high moral or intellectual value; elevated in nature or style
	of or befitting a lord
	ostentatiously rich and superior in quality