# when's vs whence

> English confusable word pair

## The two words

### when's
*contraction · IPA /wɛnz/ · frequency rank #22,550*
Contraction of when + is.

### whence
*adverb · IPA /ʍɛns/ · frequency rank #25,641*
From where; from which place or source.

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