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neptune

Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.

Letters

7 characters

Language

English

word origin

Source

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Detailed reference entry for the English word "neptune", 7-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "neptune" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "neptune" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

Neptune is aEnglishname. It means: The eighth planet in our solar system, represented in astronomy and astrology by ♆. Pronounced /ˈnɛptjuːn/.

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Key facts for Neptune
PropertyValue
HeadwordNeptune
LanguageEnglish
Part of speechName
IPA/ˈnɛptjuːn/
Letters7
Frequency rank#18,140
Misspellings tracked10
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency rank visualization

Position of Neptune in English word frequency (lower rank = more common)

Source: Wordfreq corpus

Spelling & Dictionary Insight

The English entry for Neptune is 7 letters long, classified as aname, and transcribed in the International Phonetic Alphabet as /ˈnɛptjuːn/. Corpus data places it at rank #18,140 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.Wiktionary records 6 distinct senses for this headword, so context determines which meaning a reader should apply.

Our Hunspell-derived misspelling index lists 10 documented wrong-spelling variants for Neptune, with forms such as "enptune", "nepptune", and "neptnue". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From Middle English Neptune, Neptunus, a borrowing from Latin Neptūnus, possibly from Proto-Indo-European *nébʰ-tu-s (“damp, cloudy”) (source of Ancient Greek νέφος (néphos), Sanskrit नभस् (nábhas), etc.), with the sense of "wet, moist." Puhvel, however, co… Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is Neptune, spelled N-E-P-T-U-N-E, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    The eighth planet in our solar system, represented in astronomy and astrology by ♆.
  2. 2
    The god of the ocean and of earthquakes, equivalent to Poseidon in Greek mythology.
  3. 3
    A township in Monmouth County, New Jersey, United States.
  4. 4
    An unincorporated community in Mercer County, Ohio.
  5. 5
    An unincorporated community in Jackson County, West Virginia.
  6. 6
    An unincorporated community in Ithaca, Richland County, Wisconsin.

Etymology

From Middle English Neptune, Neptunus, a borrowing from Latin Neptūnus, possibly from Proto-Indo-European *nébʰ-tu-s (“damp, cloudy”) (source of Ancient Greek νέφος (néphos), Sanskrit नभस् (nábhas), etc.), with the sense of "wet, moist." Puhvel, however, connects it with Proto-Italic *nepōts from Proto-Indo-European *népōts by analogy to Portūnus, cognate with Vedic Apām Napāt and Avestan Apąm Napāt, Child (cf: neve, nephew) of the Water as part of an Indo-European 'Fire in the Water' myth.

Synonyms

This word in other languages

Common misspellings

Also misspelled as: enptune,nepptune,neptnue,nepttune,neptuen,neptunne,neputne,netpune,nneptune,npetune

Misspelling Pattern Breakdown

Relative frequency of common misspelling types for Neptune

Misspelling Variants of "Neptune"

enptune7nepptune8neptnue7nepttune8neptuen7neptunne8neputne7netpune7
Misspelling Variants of "Neptune"

Frequency rank: #18,140 in English

Frequently Asked Questions

How do you spell "Neptune"?
"Neptune" is spelled N-E-P-T-U-N-E. The IPA pronunciation is /ˈnɛptjuːn/.
What does "Neptune" mean?
As a name, "Neptune" means: The eighth planet in our solar system, represented in astronomy and astrology by ♆.
What are common misspellings of "Neptune"?
Common misspellings include "enptune", "nepptune", "neptnue", "nepttune", "neptuen". The correct spelling is "Neptune".
How do you pronounce "Neptune"?
The IPA (International Phonetic Alphabet) transcription for "Neptune" is /ˈnɛptjuːn/. 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 "Neptune"?
From Middle English Neptune, Neptunus, a borrowing from Latin Neptūnus, possibly from Proto-Indo-European *nébʰ-tu-s (“damp, cloudy”) (source of Ancient Greek νέφος (néphos), Sanskrit नभस् (nábhas), etc.), with the sense of "wet, moist." Puhvel, h... See the full etymology section above for more details.
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Nearby English words

Other entries that begin with the letter N in our English index:

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Data Source: Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Frequency data from Wordfreq. Misspellings derived from Hunspell dictionaries.