milligram

/ˈmɪlɪɡɹæm/

//ˈmɪlɪɡɹæm// noun

By · According to Wiktionary data (CC BY-SA) ·

"milligram" is a 9-letter English headword indexed on PlainSpell.

The verdict

“milligram” is uncommon English (frequency #56,287 among 36,575 “M” headwords), classed as a noun. The kind of spelling people second-guess.

#56,287
frequency rank, English
36,575
“M” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An SI unit of mass equal to 10⁻³ grams. Symbol: mg

Key facts for milligram
PropertyValue
Headwordmilligram
LanguageEnglish
Part of speechNoun
IPA/ˈmɪlɪɡɹæm/
Letters9
Frequency rank#56,287
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “milligram” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). milligram lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

milligram is uncommon English at frequency #56,287 among 36,575 “M” headwords, classed as anoun, transcribed /ˈmɪlɪɡɹæm/. Rarity is why readers land here mid-draft. Gloss: "An SI unit of mass equal to 10⁻³ grams. Symbol: mg".

No misspelling variants are generated for milligram in our index, since its letter sequence doesn't invite the usual edit-distance slips. No close-neighbour confusable shows up for this headword in our dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: Borrowed from French milligramme, equivalent to milli- + gram. The correct English form is milligram, spelled M-I-L-L-I-G-R-A-M.

Definition

  1. 1
    An SI unit of mass equal to 10⁻³ grams. Symbol: mg

Etymology

Borrowed from French milligramme, equivalent to milli- + gram.

This word in other languages

miligramo(Español)milligramme(Français)Milligramm(Deutsch)miligrama(Português)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "milligram"?
"milligram" is spelled M-I-L-L-I-G-R-A-M. The IPA pronunciation is /ˈmɪlɪɡɹæm/.
What does "milligram" mean?
As a noun, "milligram" means: An SI unit of mass equal to 10⁻³ grams. Symbol: mg
How do you pronounce "milligram"?
The IPA (International Phonetic Alphabet) transcription for "milligram" is /ˈmɪlɪɡɹæm/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "milligram"?
Borrowed from French milligramme, equivalent to milli- + gram. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “milligram”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is M-I-L-L-I-G-R-A-M - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈmɪlɪɡɹæm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list