# Arcturus

> English word · Proper noun · IPA /ɑɹkˈtjʊəɹəs/ · frequency rank #83,978

## Definitions
1. A bright yellow-orange star in the constellation Boötes; Alpha (α) Boötis. It is the fourth-brightest star in the night sky.

## Etymology
Borrowed from Latin Arctūrus.

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