but

Spelling & Dictionary Insight

The English entry for but is 3 letters long, classified as aprep, and transcribed in the International Phonetic Alphabet as /ˈbʌt/. Corpus data places it at rank #25 in overall English word frequency, putting it firmly in the everyday core of the language.Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

No frequent misspelling variants are recorded for but in our index, suggesting the orthography either follows predictable English patterns or the word is uncommon enough that typo corpora lack signal.It also participates in 20 confusable-pair relationships, "by", "BW", "BX", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English but, buten, boute, bouten, from Old English būtan (“without, outside of, except, only”), from Proto-West Germanic *biūtan, *biūtini, equivalent to be- + out. Cognate with Scots but, bot (“outside, without, but”), Saterland Frisian buute … 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 but, spelled B-U-T, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.