# bby vs bum

> English confusable word pair

## The two words

### bby
*noun · frequency rank #49,780*
Alternative form of baby (term of endearment).

### bum
*noun · IPA /bʌm/ · frequency rank #10,339*
The buttocks.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-02.
Canonical page: https://plainspell.com/en/vs/bby-vs-bum