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mansion (EN)
noun

noun “mansion”

singular mansion, plural mansions
  1. a very large, impressive house, especially one that is very expensive
    The millionaire built a mansion overlooking the ocean.
  2. (chiefly UK) a large apartment building with luxury apartments
    They live in a stylish mansion in central London, which has spacious flats and a concierge.
  3. (in astrology) an astrological division of the sky, especially one of the stations of the moon
    The astrologer explained how each mansion of the moon influences people's lives.