rumbling (part of speech: verb)
sibilating (part of speech: verb)
sibilant (part of speech: adjective)
- Death; and over death- death in its most cruel aspect- a cloud of buzzing, whirling flies, and the smell, never to be forgotten, of much spilled blood. - "Historical Romances: Under the Red Robe, Count Hannibal, A Gentleman of France", Stanley J. Weyman.
- He doesn't bother me with his ideas; now and then I 've caught a sound of his bee buzzing. - "The Complete Project Gutenberg Works of George Meredith", George Meredith.
- Westville continued to buzz, but it soon had matters more worth its buzzing. - "Counsel for the Defense", Leroy Scott.