esper

/ˈɛsˌpɝ/

//ˈɛsˌpɝ// noun

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

"esper" is a 5-letter English headword indexed on PlainSpell.

The verdict

“esper” is uncommon English (frequency #53,524 among 18,836 “E” headwords), classed as a noun. The kind of spelling people second-guess.

#53,524
frequency rank, English
18,836
“E” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A person who practices the development of psychic ability.

Key facts for esper
PropertyValue
Headwordesper
LanguageEnglish
Part of speechNoun
IPA/ˈɛsˌpɝ/
Letters5
Frequency rank#53,524
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “esper” 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). esper 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

esper is uncommon English at frequency #53,524 among 18,836 “E” headwords, classed as anoun, transcribed /ˈɛsˌpɝ/. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for esper in our index, a sign its spelling follows regular English conventions. We don't track a confusable pairing for this entry, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From ESP + -er from ESP (“extrasensory perception”). The correct English form is esper, spelled E-S-P-E-R.

Definition

  1. 1
    A person who practices the development of psychic ability.
  2. 2
    A person who has extrasensory perception.

Etymology

From ESP + -er from ESP (“extrasensory perception”).

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 "esper"?
"esper" is spelled E-S-P-E-R. The IPA pronunciation is /ˈɛsˌpɝ/.
What does "esper" mean?
As a noun, "esper" means: A person who practices the development of psychic ability.
How do you pronounce "esper"?
The IPA (International Phonetic Alphabet) transcription for "esper" is /ˈɛsˌpɝ/. 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 "esper"?
From ESP + -er from ESP (“extrasensory perception”). 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 “esper”

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

  • The one correct English spelling is E-S-P-E-R - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈɛsˌpɝ/ (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 FrequencyWords open word-frequency list