servicing vs pairing

servicing and pairing both are nouns.

Word	Noun	Adjective	Verb	Adverb
servicing	Yes	No	No	No
pairing	Yes	No	No	No

As nouns, pairing is a hypernym of servicing; that is, pairing is a word with a broader meaning than servicing:

Other hypernyms of servicing include conjugation, coupling, mating, sexual union, union.

servicing (noun)	pairing (noun)
the act of mating by male animals	the act of pairing a male and female for reproductive purposes
	the act of grouping things or people in pairs