dealing vs handling

dealing and handling both are nouns.

Word	Noun	Adjective	Verb	Adverb
dealing	Yes	No	No	No
handling	Yes	No	No	No

As nouns, handling is a hypernym of dealing; that is, handling is a word with a broader meaning than dealing:

Other hypernyms of dealing include treatment.

dealing (noun)	handling (noun)
method or manner of conduct in relation to others	manual (or mechanical) carrying or moving or delivering or working with something
the act of transacting within or between groups (as carrying on commercial activities)	the action of touching with the hands (or the skillful use of the hands) or by the use of mechanical means
	the management of someone or something