The term "Queen" has several meanings depending on its context.
1) In chess, a queen is one of the pieces on the board that can move in any direction along ranks and files.
2) In entomology, a queen is a female insect that lays eggs.
3) In monarchy, a Queen is the wife or widow of a king, and holds the title of queen consort.
4) In the world of bees, a queen is a fertile female honeybee who lays all the eggs in a colony.
5) Lastly, "Queen" can also refer to a woman who is the best or most skilled at something, especially if that thing is typically associated with men (such as playing chess or being a successful businesswoman).