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to hum
01
to sing a tune with closed lips
02
to make a low, continuous, and steady sound
03
sound with a monotonous hum
04
be noisy with activity
Hum
01
a humming noise
02
an Islamic fundamentalist group in Pakistan that fought the Soviet Union in Afghanistan in the 1980s; now operates as a terrorist organization primarily in Kashmir and seeks Kashmir's accession by Pakistan
03
the state of being or appearing to be actively engaged in an activity
Example
The crickets hummed in the warm summer evening.
The refrigerator hummed softly in the kitchen.
The car engine hummed as it idled in the driveway.
The fax machine at the doctor's office hummed quietly as it transmitted medical records.
The cicadas hummed in the trees, creating a background melody.
