hums
hums
verb
Produces a low, continuous, murmuring sound, often with the mouth closed.
"The old refrigerator hums quietly in the kitchen."
Thesaurus
Synonyms: buzz, seethe, thrum, Harkat ul-Mujahedeen, Al Faran, Harkat-ul-Mujahidin, Harkat ul-Ansar, HUA, Movement of Holy Warriors, Harkat-ul-Mujahideen, busyness, humming