approaching vs motion

approaching and motion both are nouns.

Word	Noun	Adjective	Verb	Adverb
approaching	Yes	Yes	No	No
motion	Yes	No	Yes	No

As nouns, motion is a hypernym of approaching; that is, motion is a word with a broader meaning than approaching:

Other hypernyms of approaching include move, movement.

As nouns, motion is a hypernym of approaching; that is, motion is a word with a broader meaning than approaching:

approaching: the event of one object coming closer to another
motion: a natural event that involves a change in the position or location of something

Other hypernyms of approaching include movement.

approaching (noun)	motion (noun)
the act of drawing spatially closer to something	a change of position that does not entail a change of location
the temporal property of becoming nearer in time	the act of changing location from one place to another
the event of one object coming closer to another	the use of movements (especially of the hands) to communicate familiar or prearranged signals
	a formal proposal for action made to a deliberative assembly for discussion and vote
	a natural event that involves a change in the position or location of something
	an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object
	a state of change

approaching (adjective)	motion (adjective)
of the relatively near future

approaching (verb)	motion (verb)
	show, express or direct through movement