# tumblr vs tumour

> English confusable word pair

## The two words

### tumblr
*noun · frequency rank #10,626*
Alternative letter-case form of Tumblr (“a microblog on Tumblr”).

### tumour
*noun · frequency rank #17,510*
Commonwealth standard spelling of tumor.

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