# millimetre

> English word · Noun · frequency rank #47,195

## Definitions
1. An SI/MKS unit of measure, the length of ¹⁄₁₀₀₀ of a metre. Symbol: mm

## Etymology
From French millimètre, equivalent to milli- + metre.

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

## Common misspellings (12)
`imllimetre`, `mililmetre`, `milimetre`, `milliemtre`, `millimerte`, `millimetrre`, `millimettre`, `millimmetre`, `millimtere`, `millmietre`, `mlilimetre`, `mmillimetre`

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