ISF

Spelling & Dictionary Insight

The French entry for ISF is 3 letters long, classified as aname, and transcribed in the International Phonetic Alphabet as \i ɛ.s‿ɛf\. Corpus data places it at rank #17,462 in overall French word frequency, marking it as uncommon enough that many writers pause before typing it.The dominant gloss from Wiktionary reads: "Impôt déclaratif payé par les personnes physiques, célibataires ou en couple, possédant un patrimoine imposable dont la valeur nette est supérieure à un seuil fixé par la loi.".

No frequent misspelling variants are recorded for ISF 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, "it", "ix", "iu", 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 ISF, spelled I-S-F, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.