accession accretion addition adherence adhesion adjunct adjunction affixation agglomeration aggregation annexation articulation attachment augmentation bond bracketing cling clinging clotting clumping clustering coagulation coherence cohesion cohesiveness combination communication compaction compression concatenation concentration concourse concretion concurrence condensation confluence congealment congelation congeries conglobation conglomeration conjugation conjunction connection consolidation convergence copulation coupling densification gathering hardening hookup increase inseparability intercommunication intercourse interlinking joinder joining jointure junction juxtaposition knotting liaison linkage linking marriage meeting merger merging pairing prefixation reinforcement set solidification splice sticking suffixation superaddition superfetation superjunction superposition supplementation symbiosis tie tie-in tie-up unification union uniting yoking