drone
/dɹoʊn/ noun C2- A low-pitched hum or buzz.
- One of the fixed-pitch pipes on a bagpipe.
- A genre of music that uses repeated lengthy droning sounds.
- A humming or deep murmuring sound.
Plural drones
Phrasal verbs and expressions
From the library
And yet the cottage was not deserted, for a low sound came to our ears—a kind of drone of misery and despair which was indescribably melancholy.
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