air horn

Or airhorn

noun

1. a horn activated by compressed air.

Example Sentences

She equipped herself with air horns and bear spray, and put an electric fence around her yard and pond.

Read more on The Wall Street Journal

As the German entrepreneur sat pitchside at a sold-out O2 Arena for the season-concluding Final Four event, any online negativity was drowned out by thousands of screaming children and regular interjections from an air horn.

Read more on BBC

Sometimes local police will scare bears out of residents’ homes with air horns or projectiles that release an irritant akin to pepper spray, but they are legally limited in what they can do.

Read more on Los Angeles Times

“A police car with an air horn or the siren, we would push the bear up out of the community. Fifteen minutes later, they were right back downtown,” he said.

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By tipoff, an agitated rumble filled the arena, punctuated by air horns and the aforementioned singing.

Read more on Los Angeles Times