To express by humming.
To produce low sounds which blend continuously
To reek, smell bad.
To make a sound from the vocal chords without pronouncing any real words, with one's lips closed.
To drone like certain insects naturally do in motion, or sounding similarly
To buzz, be busily active like a beehive
Synonym of um: a noise indicating doubt, uncertainty, &c.
Synonym of hmm: a noise indicating thought, consideration, &c.
Unpleasant odour.
A phenomenon, or collection of phenomena, involving widespread reports of a persistent and invasive low-frequency humming, rumbling, or droning noise not audible to all people.
Busy activity, like the buzz of a beehive.
A hummed tune, i.e. created orally with lips closed.
An often indistinct sound resembling human humming.
To resonate.
To use vibrato.
To affect with vibratory motion; to set in vibration.
To brandish; to swing to and fro.
To shake with small, rapid movements to and fro.
To mark or measure by moving to and fro.
The setting, on a portable electronic device, that causes it to vibrate rather than sound any (or most) needed alarms.