# UFO vs USB

> English confusable word pair

## The two words

### UFO
*noun · IPA /ˌjuːɛfˈəʊ/ · frequency rank #15,539*
Initialism of unidentified flying object; (loosely) an alien spacecraft.

### USB
*name · IPA /ˌjuː ˌɛs ˈbiː/ · frequency rank #7,407*
Initialism of Universal Serial Bus; a serial bus standard for connecting devices.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/ufo-vs-usb