Real Dictionary

dairy
Dairy is used to refer to foods such as butter and cheese that are made from milk.

dairy in American English
a building or room where milk and cream are kept and butter and cheese are made
of milk, cream, butter, cheese, etc.
adjective: of or pertaining to a dairy or a dairy farm
noun: an establishment, as a room, building, or buildings, where milk and cream are kept and butter and cheese are made

dairy in British English
noun: a company that supplies milk and milk products