accord, addition, adjunct, adulterous affair, adultery, affair, affairs, affiliation, affinity, agent, agglomeration, agglutination, aggregation, alliance, amor, amour, approximation, articulation, assemblage, association, bond, bracketing, broker, closeness, clustering, combination, communication, concatenation, concourse, concurrence, confluence, congeries, conglomeration, conjugation, conjunction, connectedness, connection, contact, contiguity, contrariety, convergence, copulation, coupling, cuckoldry, dealings, deduction, disjunction, distributor, entanglement, eternal triangle, filiation, flirtation, forbidden love, gathering, go-between, hanky-panky, homology, hookup, illicit love, infidelity, intercommunication, intercourse, interlinking, intermediary, intermedium, intimacy, intrigue, jobber, joinder, joining, jointure, junction, knotting, link, linkage, linking, love affair, marriage, mediary, mediator, medium, meeting, merger, merging, middleman, mutual attraction, nearness, pairing, propinquity, proximity, rapport, relatedness, relation, relations, relationship, romance, romantic tie, similarity, splice, symbiosis, sympathy, tie, tie-in, tie-up, triangle, unfaithfulness, unification, union, wholesaler, yoking