obsession

Spelling & Dictionary Insight

The English entry for obsession is 9 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /əbˈsɛʃən/. Corpus data places it at rank #8,324 in overall English word frequency, indicating it appears regularly in written and spoken text.Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

Our Hunspell-derived misspelling index lists 12 documented wrong-spelling variants for obsession, with forms such as "bosession", "obbsession", and "obesssion". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It also participates in 1 confusable-pair relationship, "obsessive", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Latin obsessio (“a besieging”), from obsidere (“to besiege”); see obsess. Equivalent to obsess + -ion. 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 obsession, spelled O-B-S-E-S-S-I-O-N, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.