Bluetooth

American  

[bloo-tooth] / ˈbluˌtuθ /

noun

Computers, Trademark.

1. a brand name for a wireless networking technology that uses short-wave radio frequencies to interconnect cell phones, portable computers, and other wireless electronic devices.

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Bluetooth British  

/ ˈbluːˌtuːθ /

noun

1. a short-range radio technology that allows wireless communication between a computer and a keyboard, between mobile phones, etc

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Etymology

Origin of Bluetooth

C20: after the 10th-century Danish King Harald Blatand (Harold Bluetooth), instrumental in uniting warring factions in Scandinavia

Example Sentences

See Examples For:

Bluetooth

They use Bluetooth to sync with a handset via Meta's AI app.

From BBC ● Sep. 24, 2026

This has been bolstered by the nation-building legend of Harald Bluetooth.

From Science Daily ● Sep. 23, 2026

WSJ | Buy Side: If you’re prone to losing things, or just worried you might, a Bluetooth tracker will help ease your anxiety.

From The Wall Street Journal ● Sep. 1, 2026

Instead, the humid silence is punctuated by the diesel generators, the occasional Bluetooth speaker or the tinny buzzing of a cell phone squeezing out reggaeton, reparto or US pop.

From Barron's ● Aug. 18, 2026

She wore an expensive, custom-tailored business suit, jazzy high-heeled shoes, a Bluetooth earpiece, and glasses with thick red frames.

From "Escape from Mr. Lemoncello's Library" by Chris Grabenstein