# grout vs GRU

> English confusable word pair

## The two words

### grout
*noun · IPA /ɡɹaʊt/ · frequency rank #35,742*
A thin mortar used to fill the gaps between tiles and cavities in masonry.

### GRU
*name · frequency rank #39,340*
The Main Intelligence Directorate — the Soviet and then the Russian military intelligence agency.

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