Cassiopeia

Spelling & Dictionary Insight

The English entry for Cassiopeia is 10 letters long, classified as a proper noun, and transcribed in the International Phonetic Alphabet as /ˌkæs.i.əˈpiː.ə/. Corpus data places it at rank #60,699 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.

No misspelling variants are generated for Cassiopeia in our index, suggesting the orthography follows predictable English patterns. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From Latin Cassiopēia, from Ancient Greek Κασσιόπεια (Kassiópeia) or Κασσιόπη (Kassiópē). Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is Cassiopeia, spelled C-A-S-S-I-O-P-E-I-A, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.