1. (p. pr. & vb. n.) of Pair.

2. (n.) The act or process of uniting or arranging in pairs or couples.

3. (v. i.) See Pair.

Janus agglomeration agglutination aggregation ambiguity ambivalence articulation biformity bifurcation bond bracketing clustering combination communication concatenation concourse concurrence confluence congeries conglomeration conjugation conjunction connection convergence copulation coupling dichotomy doubleness doublethink doubling dualism duality duplexity duplication duplicity equivocality gathering halving hookup intercommunication intercourse interlinking irony joinder joining jointure junction knotting liaison linkage linking marriage meeting merger merging polarity splice symbiosis tie tie-in tie-up twinning two-facedness twoness unification union yoking