Jackscrew :: "Jackscrew (n.) A jack in which a screw is used for lifting, or exerting pressure. See Illust. of 2d Jack, n., 5..
Jackslave :: Jackslave (n.) A low servant; a mean fellow.
Jacksmith :: "Jacksmith (n.) A smith who makes jacks. See 2d Jack, 4, c..
Jacksnipe :: "Jacksnipe (n.) A small European snipe (Limnocryptes gallinula); -- called also judcock, jedcock, juddock, jed, and half snipe..
Jacksnipe :: "Jacksnipe (n.) A small American sandpiper (Tringa maculata); -- called also pectoral sandpiper, and grass snipe..
Jackstay :: "Jackstay (n.) A rail of wood or iron stretching along a yard of a vessel, to which the sails are fastened..
Jackstone :: Jackstone (n.) One of the pebbles or pieces used in the game of jackstones.
Jackstone :: Jackstone (n.) A game played with five small stones or pieces of metal. See 6th Chuck.
Jackstraw :: "Jackstraw (n.) An effigy stuffed with straw; a scarecrow; hence, a man without property or influence..
Jackstraw :: "Jackstraw (n.) One of a set of straws of strips of ivory, bone, wood, etc., for playing a child's game, the jackstraws being thrown confusedly together on a table, to be gathered up singly by a hooked instrument, without touching or disturbing the rest of the pile. See Spilikin..