# cobalt vs cobble

> English confusable word pair

## The two words

### cobalt
*noun · IPA /ˈkəʊ.bɒlt/ · frequency rank #17,796*
A chemical element (symbol Co) with an atomic number of 27: a hard, lustrous, silver-gray metal.

### cobble
*noun · IPA /ˈkɒb.əl/ · frequency rank #40,620*
A cobblestone.

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