(selling goods abroad at a price below that charged in the domestic market)
(throw away as refuse; "No dumping in these woods!")
(sever all ties with, usually unceremoniously or irresponsibly; "The company dumped him after many years of service"; "She dumped her boyfriend when she fell in love with a rich man")
(sell at artificially low prices)
(drop (stuff) in a heap or mass; "The truck dumped the garbage in the street")
(fall abruptly; "It plunged to the bottom of the well")
(knock down with force; "He decked his opponent")