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.