chateau

UK: /ˈʃætəʊ/

Collins Concise English Dictionary © HarperCollins Publishers::

chateau, château / ˈʃætəʊ ʃɑto/ noun ( -teaux / -təʊ -təʊz -to/, -teaus)

1. a country house, castle, or manor house, esp in France
2. (in the name of a wine) estate or vineyard

Etymology: 18th Century: from French, from Old French chastel, from Latin castellum fortress, castle

WordReference Random House Learner's Dictionary of American English © 2026

châ•teau or cha•teau/ʃæˈtoʊ/   n. [countable] , pl. -teaus /-ˈtoʊz/  -teaux 

/-ˈtoʊz, -ˈtoʊ/.  
1. Architecture a castle or large country house or estate, esp. in France.

WordReference Random House Unabridged Dictionary of American English © 2026

châ•teau  (sha tō′; Fr. shä tō′), n., pl. -teaus, -teaux 

(-tōz′; Fr. -tō′). 
1. Architecture (in France) a castle or fortress.
2. Architecture a stately residence imitating a distinctively French castle.
3. Architecture a country estate, esp. a fine one, in France or elsewhere on the Continent.
4. Wine (often cap.) a winegrower's estate, esp. in the Bordeaux region of France: often used as part of the name of a wine.

Also, cha•teau′. 

• French Latin castellum castellum
• 1730–40