Synonyms and related words :
accompaniment, accordance, agreement, alliance, apple-polishing, ass-kissing, association, backscratching, bootlicking, brown-nosing, cahoots, co-working, coaction, coincidence, collaboration, collectivity, collusion, combination, combined effort, commensality, concert, concerted action, concomitance, concordance, concourse, concurrence, confluence, conjunction, consilience, conspiracy, cooperation, correspondence, cringing, ecology, ecosystem, fawnery, fawning, flunkyism, footlicking, groveling, handshaking, ingratiation, insinuation, junction, mealymouthedness, obeisance, obsequiousness, prostration, saprophytism, simultaneity, sponging, sycophancy, symbiosis, symbiotics, synchronism, synergy, timeserving, toadeating, toadying, toadyism, truckling, tufthunting, union, united action