# fem vs fui

> Spanish confusable word pair

## The two words

### fem
*num · IPA [fɛmˀ] · frequency rank #41,915*
Cinco.

### fui
*verb · IPA [ˈfwi] · frequency rank #852*
Primera persona del singular (yo) del pretérito perfecto simple de indicativo de ser.

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