milli-

US/¦mɪlɪ/

prefix

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.

“Example: milligram”

Similar
chilia-
Opposite
kilo-
OriginFrench milli- ← Latin mīlle ← Proto-Italic *smīɣeslī →
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

prefix
  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.

    Example: milligram

    Antonyms: kilo-

  2. thousand

    Example: millipede

    Synonyms: chilia-

Synonyms & antonyms

prefixIn 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.

Opposite
kilo-

prefixthousand

Similar
chilia-

Origin

  1. Proto-Indo-European*sem-
  2. Proto-Indo-European*sm̥-
  3. Proto-Indo-European*smih₂
  4. Proto-Indo-European*ǵʰes-
  5. Proto-Indo-European*ǵʰéslom
  6. Proto-Indo-European*ǵʰéslih₂
  7. Proto-Indo-European*smih₂ǵʰéslih₂
  8. Proto-Italic*smīɣeslī
  9. Latinmīlle
  10. Frenchmilli-
  11. Englishmilli-

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

More words from Latin

Full word history & related roots →

Translations

Bulgarian мили-
  • мили- (mili-)prefix
Catalan mil·li-
  • mil·li-prefix
Chinese Mandarin 毫-
  • 毫- (háo-)prefix
Czech mili-
  • mili-prefix
Dutch milli-
  • milli-prefix
Estonian milli-
  • milli-prefix
Finnish milli-
  • milli-prefix
French milli-
  • milli-prefix
German milli-
  • milli-prefix
Greek χιλιοστό-
  • χιλιοστό- (chiliostó-)prefix
Hindi सहस्रि-
  • सहस्रि- (sahasri-)prefix
Hungarian milli-
  • milli-prefix
Icelandic milli-
  • milli-prefix
Indonesian mili-
  • mili-prefix
Irish mili-
  • mili-prefix
Italian milli-
  • milli-prefix
Japanese ミリ-
  • ミリ- (miri-)prefix
Latvian mili-
  • mili-prefix
Lithuanian mili-
  • mili-prefix
Malay mili-
  • mili-prefix
Polish mili-
  • mili-prefix
Portuguese mili-
  • mili-prefix
Romanian mili-
  • mili-prefix
Russian милли-
  • милли- (milli-)prefix
Scottish Gaelic mili-
  • mili-prefix
Slovak mili-
  • mili-prefix
Spanish mili-
  • mili-prefix
Swedish milli-
  • milli-prefix
Tagalog kalibo-
  • kalibo-prefix
Thai มิลลิ-
  • มิลลิ- (min-lí-)prefix
Turkish mili-
  • mili-prefix
Ukrainian мілі-
  • мілі- (mili-)prefix
Vietnamese mi-li
  • mi-liprefix
Yiddish מילי־
  • מילי־ (mili-)prefix
Cite this entry
APA

milli-. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/milli-

MLA

“milli-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/milli-. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “milli-,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/milli-.

Source: milli- on Wiktionary, CC BY-SA 4.0.