# SEP vs SETI

> English confusable word pair

## The two words

### SEP
*name · frequency rank #7,846*
Alternative letter-case form of Sep (“September”).

### SETI
*name · frequency rank #46,770*
Acronym of search for extraterrestrial intelligence.

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