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

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

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

JBL Bluetooth Speaker “I use this a lot.”

From The Wall Street Journal • Mar. 2, 2026

Dr. Zinchenko sighed and touched her Bluetooth earpiece.

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