S1

Spelling & Dictionary Insight

The French entry for S1 is 2 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as \ɛs.œ̃\. Corpus data places it at rank #23,361 in overall French word frequency, marking it as uncommon enough that many writers pause before typing it.The dominant gloss from Wiktionary reads: "Première vertèbre sacrale (de haut en bas).".

No frequent misspelling variants are recorded for S1 in our index, suggesting the orthography either follows predictable French patterns or the word is uncommon enough that typo corpora lack signal.It also participates in 20 confusable-pair relationships, "se", "si", "sa", and more, where similar look or sound leads writers to substitute one word for another in context.

No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. For readers arriving here from a spelling check, the authoritative guidance is: the correct French form is S1, spelled S-1, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.