Hum
HUM, verb intransitive To utter the sound of bees; to buzz.
1. To make an inarticulate buzzing sound.
The cloudy messenger turns me his back,
And hums--
2. To pause in speaking, and make an audible noise like the humming bees.
He hummed and hawed.
3. To make a dull, heavy noise like a drone.
Still humming, on their drowsy course they took.
4. To applaud.
HUM, verb transitive To sing in a low voice; as, to hum a tune.
1. To cause to hum; to impose on.
HUM, noun The noise of bees or insects.
1. A low confused noise, as of crowds; as the busy hum of men.
2. Any low dull noise.
3. A low inarticulate sound, uttered by a speaker in a pause; as hums and haws.
4. An expression of applause.
HUM, exclamation A sound with a pause, implying doubt and deliberation.