Poultry is the class of domesticated fowl (birds) used for food or for their eggs. These most typically are members of the orders Galliformes (such as chickens and turkeys), and Anseriformes (waterfowl such as ducks and geese).
The word poultry is often used to refer to the meat of these birds. In a more general sense, it may refer to the meat of other birds, such as pigeons or doves, or game birds like pheasants.