flying vs moving

flying is a noun but moving is not a noun.

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

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

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