# bby vs BMI

> English confusable word pair

## The two words

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

### BMI
*noun · frequency rank #16,419*
Initialism of body mass index.

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