Fillet (cut)
A fillet (or filet) (UK , US ; from the French word filet /filɛ/) is a cut or slice of boneless meat or fish.
Meat
Beef
In the case of beef, the term most often refers to beef tenderloin in the United States, especially filet mignon.
Chicken
Chicken fillets, sometimes called inner fillets, are a specific cut of meat from the chicken. There are two fillets in a chicken, and they are each a few inches long and about 1 inch or less wide. They lie under the main portion of the breast just above the ribcage around the center of the sternum. They are separated from the main breast by filament.
Chicken fillets are very popular in supermarkets in many countries. They can come attached to the main breast itself or separated from the breast in packages of generally four or more fillets.
Raw chicken fillets
Fillet of pork
Fish
In preparation for filleting, the scales on the fish should be removed. The contents of the stomach also need careful detaching from the fillet.