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

If Mengucci’s plain talk can’t be received by investors’ antennae or Bluetooth, they’d better check their connectivity.

From Barron's ● Jun. 30, 2026

One Bluetooth signal, one app permission, one search-history entry, one fitness-tracker reading, each appears trivial in isolation.

From Slate ● Jun. 29, 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