\Cha`teau"\, n.; pl. {Chateux}. [F. ch[^a]teau a castle.
See {Castle}.]
1. A castle or a fortress in France.
2. A manor house or residence of the lord of the manor; a
   gentleman's country seat; also, particularly, a royal
   residence; as, the chateau of the Louvre; the chateau of
   the Luxembourg.
Note: The distinctive, French term for a fortified caste of
      the middle ages is ch[^a]teau-fort.
{Chateau en Espagne}[F.], a castle in Spain, that is, a
   castle in the air, Spain being the region of romance.