the sound of buzzing, humming, or droning, such as from insects or aircraft engines

to raise a terrific din or create a lot of noise for something; doing things for appearance or show without practical results or substance

to hum, drone, or buzz, such as the sound made by insects

a continuous low humming, buzzing, or droning sound

a type of aerial bomb or missile that makes a buzzing sound

vuvuzela; a long plastic horn blown by fans at sports matches