# Pasteur vs pester

> English confusable word pair

## The two words

### Pasteur
*name · frequency rank #37,146*
A surname from French.

### pester
*verb · IPA /ˈpɛstə(ɹ)/ · frequency rank #48,966*
To bother, harass, or annoy persistently.

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