The sound produced by something that buzzes.(noun)
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Use "buzzing" in a sentence
"Another word buzzing around the conference was "immersion" -- as defined by Frank Rose in his fascinating new book, The Art of Immersion: How the Digital Generation Is Remaking Hollywood, Madison Avenue, and the Way We Tell Stories."
"St. Francis, however, was merely amused by what he called the buzzing of flies, and wrote to one in whom he could confide:"
"Her lips are still buzzing from the shock of the kiss; she can barely think, let alone muster a snappy comeback."