CASTLE, n.
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, In the game of chess, to cover the king with a castle, by a certain move.
The King James Bible has stood its ground for nearly 400 years. However, during that time the English language has changed, and with it the meanings of some words it used. Here are more than 6,500 words whose definitions have changed since 1611.Wikipedia
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