Hum

v. i.	1.	To make a low, prolonged sound, like that of a bee in flight; to drone; to murmur; to buzz; as, a top hums. [imp. & p. p. Hummed ; p. pr. & vb. n. Humming .] 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.
v. t.	1.	To sing with shut mouth; to murmur without articulation; to mumble; as, to hum a tune.
	2.	To express satisfaction with by humming.
	3.	To flatter by approving; to cajole; to impose on; to humbug.
n.	1.	A low monotonous noise, as of bees in flight, of a swiftly revolving top, of a wheel, or the like; a drone; a buzz. The shard-borne beetle with his drowsy hums. - Shak.
	2.	Any inarticulate and buzzing sound But 'midst the crowd, the hum, the shock of men. - Byron.
	3.	A buzz or murmur, as of approbation.
	3.	An imposition or hoax.
	4.	An inarticulate nasal sound or murmur, like h'm, uttered by a speaker in pause from embarrassment, affectation, etc. These shrugs, these hums and ha's. - Shak.
	5.	A kind of strong drink formerly used. Venous hum See under Venous.
interj.	1.	Ahem; hem; an inarticulate sound uttered in a pause of speech implying doubt and deliberation.

Noun	1.	hum - the state of being or appearing to be actively engaged in an activity; "they manifested all the busyness of a pack of beavers"; "there is a constant hum of military preparation" Synonyms: busyness
	2.	HUM - 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 Synonyms: Al Faran, Harkat ul-Ansar, Harkat ul-Mujahedeen, Harkat-ul-Mujahidin, HUA, Movement of Holy Warriors
	3.	hum - a humming noise; "the hum of distant traffic" Synonyms: humming
Verb	1.	hum - sing with closed lips; "She hummed a melody"
	2.	hum - be noisy with activity; "This office is buzzing with activity" Synonyms: seethe, buzz
	3.	hum - sound with a monotonous hum Synonyms: thrum
	4.	hum - make a low continuous sound; "The refrigerator is humming"

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