jackJACK, n. 10. A horse or wooden frame on which wood or timer is sawed. 11. In sea-language, a flag, ensign or colors, displayed from a staff on the end of a bow-sprit. 12. In Yorkshire, half a pint. A quarter of a pint. Jack of all trades, a person who can turn his hand to any king of business. Jack by the hedge, a plant of the genus Erysimum, that grown under hedges. Jack in a box, a plant of the genus Hernandia. Jack with a lantern, an ignis fatuus, a meteor that appears in low moist lands. Jack of the clock-house, a little man that strikes the quarters in a clock. |