conjugation vs pairing

conjugation and pairing both are nouns.

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

As nouns, conjugation and pairing are synonyms defined as:

conjugation and pairing: the act of pairing a male and female for reproductive purposes

Other synonyms of conjugation include coupling, mating, sexual union, union.

conjugation (noun)	pairing (noun)
the act of pairing a male and female for reproductive purposes	the act of pairing a male and female for reproductive purposes
the act of making or becoming a single unit	the act of grouping things or people in pairs
a class of verbs having the same inflectional forms
the complete set of inflected forms of a verb
the inflection of verbs
the state of being joined together