- A male bee, especially a honeybee, that is characteristically stingless, performs no work, and produces no honey. Its only function is to mate with the queen bee.
- An idle person who lives off others; a loafer.
- A person who does tedious or menial work; a drudge: “undervalued drones who labored in obscurity” (Caroline Bates).
- A pilotless aircraft operated by remote control.
- To become wider or larger; expand.
- To speak or write at great length on a subject; expatiate.