# sein vs seno

> Spanish confusable word pair

## The two words

### sein
*verb · IPA [ˈzaɪ̯n] · frequency rank #45,601*
Ser, estar.

### seno
*noun · IPA [ˈseno] · frequency rank #6,956*
Espacio vacío dentro de un cuerpo sólido.

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