n. Abbreviations of Wallachian.n. A work or structure of stone, brick, or other materials, serving to inclose a space, form a division, support, superincumbent weight, or afford a defense, shelter, or security.n. A solid and permanent inclosing fence of masonry, as around a field, a garden, a park, or a town.n. A rampart; a fortified enceinte or barrier: often in the plural. See cuts under chemm-deronde, fortification, and retaining wall.n. Something which resembles or suggests a wall: as, a wall of armed men; a wall of fire.n. A defense; means of security or protection.n. In mining, one of the surfaces of rock between which the vein or lode is inclosed; the country, or country rock, adjacent to the vein. See vein.n. In heraldry, a bearing having some resemblance to a wall, usually embattled.n. In anatomy and zoology, a paries; an extended investing or containing structure or part of the body: as, a cell-wall; the walls of the chest or abdomen: generally in the pluraln. In cor als, the proper outer investment of the visceral chamber, whether of a single corallum or of a single corallite of a compound corallum.n. Same as wall-knotTo inclose with a wall or as with a wall; furnish with walls: as, to wall a city.To defend by walls; fortify.To obstruct or hinder as by a wall.To fill up with a wall.In English university slang, same as gate.To boil.To well, as water; spring.n. A spring of water.n. A disease of the eyes: same as walleye.