moving vs flying

moving is not a noun while flying is a noun.

Word	Noun	Adjective	Verb	Adverb
moving	No	Yes	No	No
flying	Yes	Yes	No	No

moving (noun)	flying (noun)
	an instance of traveling by air

moving (adjective)	flying (adjective)
arousing or capable of arousing deep emotion	hurried and brief
in motion	moving swiftly
used of a series of photographs presented so as to create the illusion of motion