CASTING-VOTE, CASTLE, noun 1. A house fortified for defense against an enemy; a fortress. The term seems to include the house and the walls or other works around it. In old writers, the word is used for a town or village fortified. 2. The house or mansion of a nobleman or prince. 3. In a ship, there are two parts called by this name; the forecastle, a short deck in the fore part of the ship, above the upper deck; and the hindcastle, at the stern. Castle in the air, a visionary project; a scheme that has no solid foundation. CASTLE, verb transitive In the game of chess, to cover the king with a castle, by a certain move.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI