# Planck vs plank

> English confusable word pair

## The two words

### Planck
*name · IPA /plɑ(ː)ŋk/ · frequency rank #28,332*
A surname from German.

### plank
*noun · IPA /ˈplæŋk/ · frequency rank #15,884*
A long, broad and thick piece of timber, as opposed to a board which is less thick.

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