Samheiti: appliance, contraption, contrivance, convenience, doodad, doohickey, doojigger, gadget, gimmick, gismo, gubbins, thingamabob, thingamajig, thingmabob, thingmajig, thingumabob, thingumajig, thingummy, whatchamacallit, whatchamacallum, whatsis, widget