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drone

1 drone /ˈdroʊn/ noun
plural drones
1 drone
/ˈdroʊn/
noun
plural drones
Britannica Dictionary definition of DRONE
[count]
: a deep continuous sound : hum usually singular
compare 3drone
2 drone /ˈdroʊn/ verb
drones; droned; droning
2 drone
/ˈdroʊn/
verb
drones; droned; droning
Britannica Dictionary definition of DRONE
[no object]
: to make a continuous low humming sound

drone on

[phrasal verb] informal
: to speak for a long time in a dull voice without saying anything interesting
3 drone /ˈdroʊn/ noun
plural drones
3 drone
/ˈdroʊn/
noun
plural drones
Britannica Dictionary definition of DRONE
[count]
: a type of male bee that does not gather honey
chiefly US, informal : a person who does work that is boring and not very important
: a type of small aircraft that flies without a pilot
compare 1drone