hum

hum is a Verb

Definition:

[1] To make a low, prolonged sound, like that of a bee in flight; to drone; to murmur; to buzz; as, a top hums. P. Fletcher. Still humming on, their drowsy course they keep. Pope.

[2] 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. The cloudy messenger turns me his back, And hums. Shak.

[3] To make an inarticulate sound, like h`m, through the nose in the process of speaking, from embarrassment or a affectation; to hem.

[4] To express satisfaction by a humming noise. Here the spectators hummed. Trial of the Regicides.

[5] To have the sensation of a humming noise; as, my head hums, -- a pathological condition.