accession, accessory, accompaniment, accumulative, addenda, addendum, additament, addition, additional, additory, additum, adjunct, adjuvant, annex, annexation, appanage, appendage, appendant, appurtenance, appurtenant, attachment, augment, augmentation, chain, coda, complement, component, concomitant, constituent, continuation, corollary, cumulative, elemental, extension, extrapolation, fixture, increase, increment, offshoot, pendant, reinforcement, side effect, side issue, summational, summative, supplement, tailpiece, undergirding
addition, annexation, adjection, junction, superposition, superaddition, superjunction, superfetation, accession, reinforcement, increase, increment, supplement, accompaniment, interposition, insertion, added, additional, supplemental, supplementary, suppletory, subjunctive, adjectitious, adscititious, ascititious, additive
, extra, accessory, au reste, in addition, more, plus, extra, and, also, likewise, too, furthermore, further, item, and also, and eke, else, besides, to boot, et cetera, and so on, and so forth, into the bargain, cum multis aliis, over and above, moreover, with, withal, including, inclusive, as well as, not to mention, let alone, together with, along with, coupled with, in conjunction with, conjointly, jointly, adde parvum parvo magnus acervus erit.
preservation, safe-keeping, conservation, maintenance, support, susteritation, conservatism, vis conservatrix, salvation, prophylaxis, preserver, preservative, additive
, antibiotics, antifungals, biocide, hygiastics, hygiantics, cover, drugget, cordon sanitaire, canning, ensilage, tinned goods, canned goods, snake oil, spider webs, cure-all, laetrile, charm, preserving, conservative, prophylactic, preservatory, preservative, hygienic, preserved, unimpaired, unbroken, uninjured, unhurt, unsinged, unmarred, safe, safe and sound, intact, with a whole skin, nolumus leges Angliae mutari.
cooperation, coadjuvancy, coadjutancy, coagency, coefficiency, concert, concurrence, complicity, participation, union, additivity, combination, collusion, association, alliance, colleagueship, joint stock, copartnership, cartel, confederation, coalition, fusion, a long pull a strong pull and a pull all together, logrolling, freemasonry, unanimity, esprit de corps, party spirit, clanship, partisanship, concord, synergy, coaction, cooperating, in cooperation, in league, coadjuvant, coadjutant, dyed in the wool, cooperative, additive
, participative, coactive, synergetic, synergistic, favorable to, unopposed, as one, shoulder to shoulder, synergistically, cooperatively, due teste valgono piu che una sola.