# prolong vs proton

> English confusable word pair

## The two words

### prolong
*verb · IPA /pɹəʊˈlɒŋ/ · frequency rank #22,183*
To extend in space or length.

### proton
*noun · IPA /ˈpɹəʊ.tɒn/ · frequency rank #16,779*
A positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element, composed of two up quarks and a down quark.

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