# PTO vs PU

> English confusable word pair

## The two words

### PTO
*noun · frequency rank #36,300*
Initialism of parent-teacher organization.

### PU
*intj · frequency rank #16,315*
Alternative form of P U; expression used when encountering a displeasing smell; exaggerated pronunciation of pew.

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