conjugation

the state of being joined together

the inflection of verbs

the complete set of inflected forms of a verb

a class of verbs having the same inflectional forms

the act of pairing a male and female for reproductive purposes; "the casual couplings of adolescents"; "the mating of some species occurs only in the spring"

the act of making or becoming a single unit; "the union of opposing factions"; "he looked forward to the unification of his family for the holidays"