What is another word for "diplomacy"?

Roget's Thesaurus (1911) lists these synonyms for "diplomacy": agent, agree, agreement, and, arbitrate, arbitration, arbitrator, attest, bargain, barter, bond, candle, cartel, caveat, charter, clench, close, come, compact, complete, completion, compromise, conclude, concordat, confirm, consignee, contract, convention, conventional, covenant, deal, diplomatics, diplomatist, endorse, engage, favored, flag, for, free, go-between.