# septum

> English word · Noun · IPA /ˈsɛp.təm/ · frequency rank #33,013

## Definitions
1. A wall separating two cavities; a partition.
2. A wall separating two cavities; a partition.
3. A wall separating two cavities; a partition.
4. A wall separating two cavities; a partition.
5. A wall separating two cavities; a partition.
6. A wall separating two cavities; a partition.
7. A wall separating two cavities; a partition.
8. A wall separating two cavities; a partition.
9. Ellipsis of septum ring or septum piercing.

## Etymology
Borrowed from Latin sēptum (“enclosure, wall, fence”).

## Easily confused with
- **setup** (https://plainspell.com/en/vs/septum-vs-setup)
- **serum** (https://plainspell.com/en/vs/septum-vs-serum)
- **sept** (https://plainspell.com/en/vs/sept-vs-septum)
- **septic** (https://plainspell.com/en/vs/septic-vs-septum)

## Common misspellings (9)
`esptum`, `sepptum`, `septmu`, `septtum`, `septumm`, `seputm`, `setpum`, `spetum`, `sseptum`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/septum