n. A person employed in drawing or painting lines, as in decorative art.n. A ship of the line; a man-of-war.n. A vessel regularly plying to and from certain ports; especially, a vessel belonging to one of the regular steamship lines: as, a Liverpool and New York liner.n. In base-ball, a ball knocked or thrown with much force nearly parallel to the ground: as, he struck a liner to second base.n. A ball, marble, or the like that strikes or remains on some certain line of demarcation used in a game.n. One who or that which lines. Specificallyn. A vessel of smooth material fit for holding liquids, etc., fitting within an ornamental exterior and made movable for facility of emptying, cleansing, etc.n. In machinery, a thin plate of metal, paper, leatheroid, etc., placed under some movable and adjustable part—a gib for example—to set up the part toward its bearing after it has been worn away as much as the thickness of the plate.n. In marble-working, a long slab of marble to which the backs of small marble tiles, etc., are secured by plaster while being polished.n. A fine-pointed red sable brush, with a metal ferrule and wooden handle.n. A vessel engaged in line-fishing at sea.n. One who writes items for the press, which are paid for by the line; a penny-a-liner.n. A picture hung ‘on the line,’ at an exhibition.n. In law, one whose legal domicile must be determined by some specific legislative or judicial act, by reason of the fact that his place of residence is situated upon a boundary line between different jurisdictions.n. In machinery:n. A cylinder or vessel placed inside another cylinder or vessel as a lining: frequently used in engines or pumps to protect the main cylinder from wear and injury and to facilitate making repairs.n. In iron ship-building, a piece of plate used to fill up a narrow space between a plate and a bar or in the seam of two plates so that they can be riveted solidly together in places where, owing to the arrangement of the parts, the adjoining surfaces cannot bo brought into close contact.