# sinus vs Sirius

> English confusable word pair

## The two words

### sinus
*noun · IPA /ˈsaɪ.nəs/ · frequency rank #20,225*
A pouch or cavity in a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities (the paranasal sinus).

### Sirius
*name · IPA /ˈsɪɹi.əs/ · frequency rank #20,774*
A telescopic binary star, visually the brightest star in the night sky, a part of the northern constellation of Canis Major (the Greater Dog), one of three stars in the Winter Triangle asterism. Long understood as a single extremely luminous white star, it was associated in ancient Egypt with the Nile flood and in Greek and Roman culture with the "dog days" of summer.

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