# Fe vs fi

> English confusable word pair

## The two words

### Fe
*noun · frequency rank #8,285*
American Library Association abbreviation for forty-eighth, a book size (7.5-10 cm in height); a book of that height.

### fi
*noun · IPA /fiː/ · frequency rank #4,603*
The solfeggio syllable used to indicate the sharp of the fourth note of a major scale.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/fe-vs-fi