The often large, luxurious country house of a well-to-do person, A country-seat; a rural or suburban mansion; a country residence, properly one of some size and pretension, though the name is commonly misapplied, especially in Great Britain, to a cottage, or to one of the class of cheap houses built on speculation in the suburbs of a city; in old English law, a manor, A house, often larger and more expensive than average, in the countryside or on the coast, often used as a retreat

The main house on an estate; a mansion, The jurisdiction of a court-baron or court of the lord of a manor, the landed estate of a lord (including the house on it)

A large fortified building or group of buildings with thick walls, usually dominating the surrounding country, A place of privacy, security, or refuge, Any strong, imposing, and stately mansion, intransitive verb_ Games To move (the king in chess) by castling, To place in or as if in a castle, verb_ chess To perform the move of castling, cricket To bowl a batsman with a full-length ball or yorker such that the stumps are knocked over