# sept vs SPD

> English confusable word pair

## The two words

### sept
*noun · IPA /sɛpt/ · frequency rank #3,981*
A clan, tribe, or family, proceeding from a common progenitor; especially, one of the ancient clans of Ireland.

### SPD
*noun · frequency rank #20,781*
Initialism of schizoid personality disorder.

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