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Definition of hum:

  1. A buzz or murmur, as of approbation.
  2. A kind of strong drink formerly used.
  3. A low monotonous noise, as of bees in flight, of a swiftly revolving top, of a wheel, or the like; a drone; a buzz.
  4. Ahem; hem; an inarticulate sound uttered in a pause of speech implying doubt and deliberation.
  5. An imposition or hoax.
  6. An inarticulate nasal sound or murmur, like h'm, uttered by a speaker in pause from embarrassment, affectation, etc.
  7. Any inarticulate and buzzing sound
  8. The confused noise of a crowd or of machinery, etc., heard at a distance; as, the hum of industry.
  9. To express satisfaction by a humming noise.
  10. To express satisfaction with by humming.
  11. To flatter by approving; to cajole; to impose on; to humbug.
  12. To have the sensation of a humming noise; as, my head hums, - a pathological condition.
  13. To make a low, prolonged sound, like that of a bee in flight; to drone; to murmur; to buzz; as, a top hums.
  14. To make a nasal sound, like that of the letter m prolonged, without opening the mouth, or articulating; to mumble in monotonous undertone; to drone.
  15. To make an inarticulate sound, like h'm, through the nose in the process of speaking, from embarrassment or a affectation; to hem.
  16. To sing with shut mouth; to murmur without articulation; to mumble; as, to hum a tune.


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