Millennium

noun

The verdict

“Millennium” is uncommon French (frequency #59,449 among 202,672 “M” headwords), classed as a noun. The kind of spelling people second-guess.

#59,449
frequency rank, French
202,672
“M” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Millénaire, durée de mille ans.

Key facts for Millennium
PropertyValue
HeadwordMillennium
LanguageFrench
Part of speechNoun
Letters10
Frequency rank#59,449
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Millennium” sits in French 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). Millennium 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

Millennium is uncommon French at frequency #59,449 among 202,672 “M” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Millénaire, durée de mille ans.".

No generated misspelling entries exist for Millennium in our index, which points to an orthography that plays by predictable French rules. We don't track a confusable pairing for this entry, since nothing in our dataset looks or sounds close enough to cause mix-ups.

No borrowing history is documented for this entry, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct French form is Millennium, spelled M-I-L-L-E-N-N-I-U-M.

Definition

  1. 1
    Millénaire, durée de mille ans.

Synonyms

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 French corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Millennium"?
"Millennium" is spelled M-I-L-L-E-N-N-I-U-M.
What does "Millennium" mean?
As a noun, "Millennium" means: Millénaire, durée de mille ans.
What language does "Millennium" come from?
"Millennium" is a French word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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 “Millennium”

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

  • The one correct French spelling is M-I-L-L-E-N-N-I-U-M - every other letter order is a misspelling in standard orthography.
  • Browse more French words and confusable pairs in the same reference. French words

Other uncommon French 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 FrequencyWords open word-frequency list