# sec vs sei

> Spanish confusable word pair

## The two words

### sec
*adjective · IPA [sɛk] · frequency rank #17,813*
Seco

### sei
*num · IPA /s̺ej/ · frequency rank #48,072*
Seis.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/es/vs/sec-vs-sei