approach vs approaching

approach and approaching both are nouns.

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

As nouns, approach and approaching are synonyms defined as:

approach and approaching: the act of drawing spatially closer to something

Other synonyms of approach include coming.

As nouns, approach and approaching are synonyms defined as:

approach and approaching: the temporal property of becoming nearer in time

Other synonyms of approach include coming.

As nouns, approach and approaching are synonyms defined as:

approach and approaching: the event of one object coming closer to another

approach (noun)	approaching (noun)
the act of drawing spatially closer to something	the act of drawing spatially closer to something
a relatively short golf shot intended to put the ball onto the putting green	the temporal property of becoming nearer in time
ideas or actions intended to deal with a problem or situation	the event of one object coming closer to another
a way of entering or leaving
the temporal property of becoming nearer in time
a close approximation
a tentative suggestion designed to elicit the reactions of others
the event of one object coming closer to another
the final path followed by an aircraft as it is landing

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

approach (verb)	approaching (verb)
make advances to someone, usually with a proposal or suggestion
move towards
come near in time
begin to deal with
come near or verge on, resemble, come nearer in quality, or character