CHATEAU
chateau
(noun) an impressive country house (or castle) in France
Source: WordNet® 3.1
Noun
chateau (plural chateaux or chateaus)
Alternative spelling of château
Source: Wiktionary
Cha`teau", n.; pl. Chateux. Etym: [F. château 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 château-fort. Chateau en Espagne ( Etym: [F.], a
castle in Spain, that is, a castle in the air, Spain being the region
of romance.
Source: Webster’s Unabridged Dictionary 1913 Edition