to make a low, prolonged sound, like that of a bee in flight; to drone; to murmur; to buzz; as, a top hums.-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.-to make an inarticulate sound, like h'm, through the nose in the process of speaking, from embarrassment or a affectation; to hem.-to express satisfaction by a humming noise.-to have the sensation of a humming noise; as, my head hums, -- a pathological condition.-to sing with shut mouth; to murmur without articulation; to mumble; as, to hum a tune.-to express satisfaction with by humming.-to flatter by approving; to cajole; to impose on; to humbug.-a low monotonous noise, as of bees in flight, of a swiftly revolving top, of a wheel, or the like; a drone; a buzz.-any inarticulate and buzzing sound-the confused noise of a crowd or of machinery, etc., heard at a distance; as, the hum of industry.-a buzz or murmur, as of approbation.-an imposition or hoax.-an inarticulate nasal sound or murmur, like h'm, uttered by a speaker in pause from embarrassment, affectation, etc.-a kind of strong drink formerly used.-ahem; hem; an inarticulate sound uttered in a pause of speech implying doubt and deliberation.