Neptune III

\nɛp.tyn tʁwa\

/\nɛp.tyn tʁwa\/ name

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

The verdict

“Neptune III” is uncommon French (outside the top frequency list), classed as a proper noun. The kind of spelling people second-guess.

Unranked
below top-frequency French
11
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Autre nom de Naïade, satellite naturel de la planète Neptune.

Key facts for Neptune III
PropertyValue
HeadwordNeptune III
LanguageFrench
Part of speechProper noun
IPA\nɛp.tyn tʁwa\
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Neptune III” sits in French frequency

Neptune III falls outside the top-100,000 ranked French words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Neptune III is uncommon French outside the top frequency list, classed as aproper noun, transcribed \nɛp.tyn tʁwa\. Rarity is why readers land here mid-draft. Gloss: "Autre nom de Naïade, satellite naturel de la planète Neptune.".

We couldn't generate a plausible misspelling set for Neptune III, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

This entry's etymology isn't recorded, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct French form is Neptune III, spelled N-E-P-T-U-N-E- -I-I-I.

Definition

  1. 1
    Autre nom de Naïade, satellite naturel de la planète Neptune.

Synonyms

NaïadeN IIIS/1989 N 6

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Neptune III"?
"Neptune III" is spelled N-E-P-T-U-N-E- -I-I-I. The IPA pronunciation is \nɛp.tyn tʁwa\.
What does "Neptune III" mean?
As a proper noun, "Neptune III" means: Autre nom de Naïade, satellite naturel de la planète Neptune.
How do you pronounce "Neptune III"?
The IPA (International Phonetic Alphabet) transcription for "Neptune III" is \nɛp.tyn tʁwa\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "Neptune III" come from?
"Neptune III" is a French word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 “Neptune III”

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

  • The one correct French spelling is N-E-P-T-U-N-E- -I-I-I - every other letter order is a misspelling in standard orthography.
  • Say it as \nɛp.tyn tʁwa\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more French words and confusable pairs in the same reference. French words
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