humming

American  

[huhm-ing] / ˈhʌm ɪŋ /

adjective

1. making a droning sound; buzzing.

2. very busy; briskly active.

   a humming office.

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Other Word Forms

• hummingly adverb

Etymology

Origin of humming

First recorded in 1570–80; hum + -ing ²

Example Sentences

The only sound came from a generator humming by the temporary white tents erected outside the bar.

From Barron's

To keep Joule’s generators humming, an on-site service shop is being built by Wheeler Machinery, the independent Caterpillar dealer for Utah.

From The Wall Street Journal

They pull 107 megawatts of power to keep their specialized computers humming so a global ledger can update itself every ten minutes for people who will never set foot in West Virginia.

From Salon

Or, ‘Wouldn’t it be nice if she’s humming outside the window?’

From Los Angeles Times

The “Call the Midwife Holiday Special 2025,” like its many predecessors, is humming with catastrophe, a virtual Santa’s workshop of traumatic events.

From The Wall Street Journal