# Bluetooth

> English word · Proper noun · IPA /ˈbluːtuːθ/ · frequency rank #10,334

## Definitions
1. The nickname of Harald Gormsson, a king of Denmark and Norway.
2. An industrial specification for wireless personal area networks.

## Etymology
From blue + tooth, calque of Old Norse Blátǫnn (modern Danish Blåtand).
* (networking): The networking standard is named after the king because the technology unites computers and mobile devices similarly to the way he united the Danish tribes.

## Common misspellings (13)
`bbluetooth`, `bleutooth`, `blluetooth`, `blueototh`, `bluetooht`, `bluetoothh`, `bluetootth`, `bluetoth`, `bluetotoh`, `bluettooth`, `bluteooth`, `buletooth`, `lbuetooth`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/bluetooth