Noun

1. Stingless male bee in a colony of social bees (especially honeybees) whose sole function is to mate with the queen
2. An unchanging intonation
3. Someone who takes more time than necessary; someone who lags behind
4. An aircraft without a pilot that is operated by remote control
5. A pipe of the bagpipe that is tuned to produce a single continuous tone

Verb

1. Make a monotonous low dull sound
2. Talk in a monotonous voice