cool

Spelling & Dictionary Insight

The English entry for cool is 4 letters long, classified as anadj, and transcribed in the International Phonetic Alphabet as /kuːl/. Corpus data places it at rank #731 in overall English word frequency, putting it firmly in the everyday core of the language.Wiktionary records 13 distinct senses for this headword, so context determines which meaning a reader should apply.

Our Hunspell-derived misspelling index lists 3 documented wrong-spelling variants for cool, with forms such as "ccool", "cooll", and "ocol". 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 20 confusable-pair relationships, "cop", "cow", "cos", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English cool, from Old English cōl (“cool, cold, tranquil, calm”), from Proto-West Germanic *kōl(ī), from Proto-Germanic *kōlaz, *kōluz (“cool”), from *kalaną (“to be cold, to freeze”), Proto-Indo-European *gel- (“to be cold, to freeze”). Cognat… 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 cool, spelled C-O-O-L, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.