(1):
(v. i.) To treat with another respecting purchase and sale or some business affair; to bargain or trade; as, to negotiate with a man for the purchase of goods or a farm.
(2):
(v. i.) To hold intercourse respecting a treaty, league, or convention; to treat with, respecting peace or commerce; to conduct communications or conferences.
(3):
(v. i.) To intrigue; to scheme.
(4):
(v. t.) To transfer for a valuable consideration under rules of commercial law; to sell; to pass.
(5):
(v. i.) To transact business; to carry on trade.
(6):
(v. t.) To carry on negotiations concerning; to procure or arrange for by negotiation; as, to negotiate peace, or an exchange.