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

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

Its TM-B e-bike is decked out with features, including Bluetooth, GPS, Wi-Fi, a built-in touchscreen, and software that supports over-the-air updates.

From Los Angeles Times • May 1, 2026

Meanwhile, your phone continuously senses and records your communications, info about your health, what apps you’re using, and tracks your location via cell towers, GPS satellites and Wi-Fi and Bluetooth.

From Salon • Apr. 23, 2026

Now a must-have iPhone accessory, the development of the first generation was infamous inside Apple for infighting among Ternus’s peers as they argued over how to keep the wireless ear buds connected via Bluetooth.

From The Wall Street Journal • Apr. 21, 2026

However, Harold did not have Bluetooth connectivity, or for that matter a CD player, meaning that while in Harold’s company, one had three choices: 1.

From "Turtles All the Way Down" by John Green