pabulumEnglishMerriam-Webster Dictionary> sha-ˈtō \ a feudal castle or fortress in Francea large country house : mansiona French vineyard estate plural châteaus \ sha-ˈtōz \ or châteaux \ sha-ˈtō(z) \ Definition 1 : a feudal castle or fortress in France2 : a large country house : mansion3 : a French vineyard estate