# Sirius

> English word · Proper noun · IPA /ˈsɪɹi.əs/ · frequency rank #20,774

## Definitions
1. 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.
2. The brightest star of the aforementioned star system; the white main-sequence star Sirius A.

## Etymology
From Latin Sīrius, from Ancient Greek Σείριος (Seírios), usually taken from σείριος (seírios, “scorching; scorcher”).

## Easily confused with
- **strips** (https://plainspell.com/en/vs/sirius-vs-strips)
- **Straus** (https://plainspell.com/en/vs/sirius-vs-straus)
- **spirits** (https://plainspell.com/en/vs/sirius-vs-spirits)
- **Siri** (https://plainspell.com/en/vs/siri-vs-sirius)
- **sinus** (https://plainspell.com/en/vs/sinus-vs-sirius)
- **series** (https://plainspell.com/en/vs/series-vs-sirius)
- **serious** (https://plainspell.com/en/vs/serious-vs-sirius)

## Common misspellings (8)
`isrius`, `siirus`, `sirisu`, `siriuss`, `sirrius`, `siruis`, `sriius`, `ssirius`

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