# perimeter

> English word · Noun · IPA /pəˈɹɪm.ɪ.tə(ɹ)/ · frequency rank #11,579

## Definitions
1. The sum of the distance of all the lengths of the sides of an object.
2. The length of such a boundary.
3. The outer limits of an area.
4. A fortified strip or boundary usually protecting a military position.
5. An instrument for determining the extent and shape of the field of vision.

## Etymology
From Latin perimetros, Ancient Greek περίμετρος (perímetros). Equivalent to peri- + meter.

## Easily confused with
- **parameter** (https://plainspell.com/en/vs/parameter-vs-perimeter)

## Common misspellings (13)
`eprimeter`, `peirmeter`, `periemter`, `perimeetr`, `perimeterr`, `perimetre`, `perimetter`, `perimmeter`, `perimteer`, `permieter`, `perrimeter`, `pperimeter`, `preimeter`

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