# BIOS vs bo

> English confusable word pair

## The two words

### BIOS
*noun · IPA /ˈbaɪ.ɒs/ · frequency rank #20,568*
Acronym of Basic Input/Output System.

### bo
*intj · IPA /bəʊ/ · frequency rank #7,100*
An exclamation used to startle or frighten.

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