Drone

The male of bees, esp. of the honeybee. It gathers no honey. See Honeybee.

One who lives on the labors of others; a lazy, idle fellow; a sluggard.

That which gives out a grave or monotonous tone or dull sound; as: (a) A drum. [Obs.] Halliwell. (b) The part of the bagpipe containing the two lowest tubes, which always sound the key note and the fifth.

A humming or deep murmuring sound.

A monotonous bass, as in a pastoral composition.

To utter or make a low, dull, monotonous, humming or murmuring sound.

To love in idleness; to do nothing.

an unchanging intonation

stingless male bee in a colony of social bees (especially honeybees) whose sole function is to mate with the queen