[n] 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"
[n] 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"
[n] a class of verbs having the same inflectional forms
[n] the complete set of inflected forms of a verb
[n] the inflection of verbs
[n] the state of being joined together
colligation, conjunction, coupling, jointure, junction, mating, pairing, sexual union, unification, union, uniting