Noun

1. A reproductive female (especially the only one) in a colony of bees.
   • 1947, AI Root, The ABC and XYZ of Bee Culture, Kessinger 2005, p. 205:

     It is generally believed that the queen bee mates only once in her lifetime.

2. The most important or dominant woman in an organisation or situation.
   • 2003, Jim Hatfield, Extra Marital Temptations, iUniverse 2003, p. 28:

     She muttered to her mother, “There's that obnoxious redhead who thought she was the Queen Bee last year when she was a senior!”

3. A remote-controlled aircraft used in target practice.
   • 2006, Antony Preston et al., Warship 2006, Chrysalis Books 2006, p. 155:

     In 1935 a small number of RAF Queen Bee radio-controlled pilotless target aircraft (the ubiquitous De Havilland Tiger Moth but with floats) were introduced.