octagon

Spelling & Dictionary Insight

The English entry for octagon is 7 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /ˈɒktəɡ(ə)n/. Corpus data places it at rank #32,520 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

Our Hunspell-derived misspelling index lists 10 documented wrong-spelling variants for octagon, with forms such as "cotagon", "ocatgon", and "occtagon". 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 2 confusable-pair relationships, "Otago", "octagonal", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Latin octagōnon, octōgōnon (“octagon”), and from its etymon Ancient Greek ὀκτάγωνον (oktágōnon, “octagon”), probably from Koine Greek ὀκτάγωνος (oktágōnos, “having eight corners”) + -ον (-on, suffix forming nouns). ὀκτάγωνος is derived from ὀκτᾰ- (oktă… 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 octagon, spelled O-C-T-A-G-O-N, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.