# Castro vs CSIRO

> English confusable word pair

## The two words

### Castro
*name · IPA /ˈkæstɹoʊ/ · frequency rank #10,659*
A surname from Spanish.

### CSIRO
*name · frequency rank #42,077*
Initialism of Commonwealth Scientific and Industrial Research Organisation, a research institute in Australia.

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