nounpl. cha·teaus or cha·teaux also châ·teaus or châ·teaux
- a. A French castle.b. A French manor house.
- An estate where wine is produced and often bottled, especially in the Bordeaux region of France.
- A large country house.
Origin of chateauFrench château, from Old French chastel, from Latin castellum, castle; see castle.
(plural chateaux or chateaus)
- Alternative spelling of chÃ¢teau.