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

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

The device uses what the company calls a six-layer hybrid positioning system, combining GPS, assisted GPS, Wi-Fi positioning, Bluetooth, cellular network data, and active radar-style search functions.

From Slate ● Jun. 20, 2026

Klugo’s Bluetooth alarm clock isn’t portable, and the hotel alarms ring too softly for him to hear.

From Los Angeles Times ● Jun. 11, 2026

Eventually the company built a Bluetooth earpiece that felt like “pure magic,” said founder Tanay Kothari.

From The Wall Street Journal ● May 10, 2026

We found some painkillers, a Bluetooth speaker fully charged, binoculars, and of course, the diapers.

From "Dry" by Neal Shusterman and Jarrod Shusterman