Cassiopeia

noun

Cas·​si·​o·​pe·​ia ˌka-sē-ə-ˈpē-ə 

1

: the wife of King Cepheus who gives birth to Andromeda and is later changed into a constellation

2

[Latin (genitive Cassiopeiae), from Greek Kassiopeia] : a northern constellation between Andromeda and Cepheus

Examples of Cassiopeia in a Sentence

Recent Examples on the Web

Sweep with binoculars from the Scorpion's tail in the Scorpius constellation, through the Summer Triangle, and then down to Cassiopeia and Perseus. —Joe Rao, Space.com, 17 Sep. 2025

As the Big Dipper gets lower on the horizon, Cassiopeia gets higher, with both completing one rotation of Polaris every 24 hours. —Jamie Carter, Forbes.com, 16 Sep. 2025

The other two are Andromeda the Princess, seen in the autumn and winter, and Cassiopeia the Queen, seen all year round in the northern sky. —Mike Lynch, Twin Cities, 18 May 2025

Luna Sulien Venus Nyx Cosmo Atom Rigel Stella Nebula Apollo Vega Andromeda Celestia Sol Lyra Comet Artemis Sirius Cassiopeia Galaxy Cosima Skye More Futuristic Baby Names Inspired by Nature Nature is majestic and wild—a constant source of inspiration for adventurous, courageous spirits. —Fiona Tapp, Parents, 10 Apr. 2025

Stargazer Cassiopeia, Terlingua, Texas Stargazer Cassiopeia was tailor-made for night-sky enthusiasts, with space-view skylights that make sleep near impossible. —Stephanie Vermillion, Outside Online, 4 Mar. 2025

Word History

Etymology

Latin, from Greek Kassiopeia

First Known Use

1596, in the meaning defined at sense 1

Rhymes for Cassiopeia

• amenorrhea
• amenorrhoea
• collectanea
• dysmenorrhea
• dysmenorrhoea
• laminaria
• pharmacopeia
• pharmacopoeia
• solanaceae
• thiourea
• aliya
• aliyah

Kids Definition

Cassiopeia

noun

Cas·​si·​o·​pe·​ia ˌkas-ē-ə-ˈpē-(y)ə 

: a northern group of stars between Andromeda and Cepheus