# milli-

> English word · Prefix · IPA /ˈmɪlɪ/

## Definitions
1. In the International System of Units and other metric systems of units, one-thousandth of the unit to which it is prefixed; that is, multiplying the unit to which it is attached by 10⁻³. Symbol: m.
2. thousand

## Etymology
From Latin mille (“thousand”), via French.

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