humming

fe’l verb

1. To make a sound from the vocal chords without pronouncing any real words, with one's lips closed. We are humming happily along with the music.
2. To express by humming. The team ominously hummed “We shall overcome” as they came back onto the field after the break.
3. To buzz, be busily active like a beehive The streets were humming with activity.
4. To reek, smell bad. This room really hums — have you ever tried spring cleaning, mate?

ot noun

1. The sound of something that hums; a hum.