What does filet mignon mean in cooking?

filet mignon means: From the tail end of the tenderloin, a thick and boneless cut of beef. However, it is not the best tasting steak. (in Cooking Dictionary)

What else does filet mignon mean?

• A tender and expensive cut of beef, taken from the Tenderloin’s small end. (in Cooking Dictionary)
• This is a small and very good cut from the loin of beef. (in Merlin Dictionary)