exoplanet

noun

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

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

The verdict

“exoplanet” has 13 generated spelling variants in the English index at frequency #48,228. The variants make it a useful spelling check.

#48,228
frequency rank, English
2,246
“E” headwords
13
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A planet which exists outside Earth's solar system.

Corpus desk

Index EN-exoplanet · exoplanet · English

exoplanet · rank #48,228 · 13 variants · 0 confusables

  • FREQ-MID #48,228
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 13 variants
  • BOOK-MID 2,246
  • PHOTO-FINISH exhortation

Nearest frequency peer: exhortation (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “exoplanet”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “exoplanet” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for exoplanet
PropertyValue
Headwordexoplanet
LanguageEnglish
Part of speechNoun
Letters9
Frequency rank#48,228
Misspellings tracked13
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “exoplanet”

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

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “exhortation” (#48,227), “fader” (#48,231), “Eusebius” (#48,224). Among 2,246 “E” headwords, “exoplanet” is #48,228. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 13 spelling variants around exoplanet, anoun. Corpus frequency is #48,228 among 2,246 “E” headwords. Dominant gloss: "A planet which exists outside Earth's solar system.".

Our generated misspelling index lists 13 likely wrong-spelling variants for exoplanet, with forms such as "eoxplanet", "exolpanet", and "exopalnet". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. 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: Constructed from Ancient Greek: exo- (“outside; extrasolar”) + planet. The correct English form is exoplanet, spelled E-X-O-P-L-A-N-E-T.

Definition

  1. 1
    A planet which exists outside Earth's solar system.

Recorded use

Wiktionary examples

These source excerpts show how exoplanet appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. More such announcements will likely come in the months to follow, as the first space observatory dedicated to hunting exoplanets, called COROT, begins full operation and researchers complete their calculations.
  2. In the past two years, NASA’s Kepler Space Telescope has located nearly 3,000 exoplanet candidates ranging from sub-Earth-sized minions to gas giants that dwarf our own Jupiter. Their densities range from that of styrofoam to iron.

Etymology

Constructed from Ancient Greek: exo- (“outside; extrasolar”) + planet.

This word in other languages

exoplaneta(Español)exoplanète(Français)Exoplanet(Deutsch)exoplaneta(Português)

Common misspellings

Also misspelled as:

  • eoxplanet
  • exolpanet
  • exopalnet
  • exoplaent
  • exoplanett
  • exoplannet
  • exoplante
  • exopllanet
  • exoplnaet
  • exopplanet
  • expolanet
  • exxoplanet
  • xeoplanet

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of exoplanet - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

eoxplanet2exolpanet2exopalnet2exoplaent2exoplanett1exoplannet1exoplante2exopllanet1
Edit distance from "exoplanet"

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 "exoplanet"?
"exoplanet" is spelled E-X-O-P-L-A-N-E-T.
What does "exoplanet" mean?
As a noun, "exoplanet" means: A planet which exists outside Earth's solar system.
What are common misspellings of "exoplanet"?
Common misspellings include "eoxplanet", "exolpanet", "exopalnet", "exoplaent", "exoplanett". The correct spelling is "exoplanet".
What is the origin of the word "exoplanet"?
Constructed from Ancient Greek: exo- (“outside; extrasolar”) + planet. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "exoplanet", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

Fallopian#48,232Fermanagh#48,235flowchart#48,241downfield#48,200

Similar misspelling depth

Headwords with a similar count of attested misspellings (13 here; floor ≥5).

drudgery13 variantsdogfight13 variantsdisparage13 variantsdiscards13 variants

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

Source: FrequencyWords open word-frequency list