THESAURUS
coupling
agglomeration, agglutination, aggregation, ankle, articulation, bond, boundary, bracketing, butt, cervix, clinch, closure, clustering, combination, communication, concatenation, concourse, concurrence, confluence, congeries, conglomeration, conjugation, conjunction, connecting link, connecting rod, connection, convergence, copulation, dovetail, elbow, embrace, gathering, gliding joint, hinge, hinged joint, hip, hookup, intercommunication, intercourse, interface, interlinking, join, joinder, joining, joint, jointure, junction, juncture, knee, knotting, knuckle, liaison, link, linkage, linking, marriage, meeting, merger, merging, miter, mortise, neck, pairing, pivot, pivot joint, rabbet, scarf, seam, shoulder, splice, stitch, suture, symbiosis, symphysis, tie, tie rod, tie-in, tie-up, toggle, toggle joint, unification, union, weld, wrist, yoking