Bluetooth

American

[bloo-tooth] / ˈbluˌtuθ /

noun

Computers, Trademark.

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.

Bluetooth British

/ ˈbluːˌtuːθ /

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Bluetooth

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Bluetooth

When levels rise too high, such as after a meal, the sensor communicates through Bluetooth with a smartphone or smartwatch.

From Science Daily ● Nov. 2, 2026

You get a cellphone mount and Bluetooth connectivity.

From Slate ● Oct. 20, 2026

The robots arrived accompanied by Ted Pinkerton, a founding engineer at Tau, who communicated with Bolo and Sergey’s human operators through a Bluetooth earpiece.

From MarketWatch ● Oct. 16, 2026

Then it went into a Faraday bag, which obstructs Wi-Fi, cellular, Bluetooth and GPS signals.

From The Wall Street Journal ● Sep. 25, 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

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023