verb, droned, dron⋅ing, noun | 1. | to make a dull, continued, low, monotonous sound; hum; buzz. |
| 2. | to speak in a monotonous tone. |
| 3. | to proceed in a dull, monotonous manner (usually fol. by on): The meeting droned on for hours. |
| 4. | to say in a dull, monotonous tone. |
| 5. | Music.
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| 6. | a monotonous low tone; humming or buzzing sound. |
| 7. | a person who speaks in a monotonous tone. |
In military usage, a pilotless aircraft used for reconnaissance and, more recently, for launching aerial attacks.