speleologist

noun

"speleologist" is a 12-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
12
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A person who studies or explores caves or studies the science of speleology.

Corpus desk

Index EN-speleologist · speleologist · English

speleologist · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 12 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" thin
  • PHOTO-UNK Peer pending

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.

Key facts for speleologist
PropertyValue
Headwordspeleologist
LanguageEnglish
Part of speechNoun
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “speleologist” in English

speleologistranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

speleologist is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A person who studies or explores caves or studies the science of speleology.".

Zero misspellings are on record for speleologist in our index, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From speleology + -ist. The correct English form is speleologist, spelled S-P-E-L-E-O-L-O-G-I-S-T.

Definition

  1. 1
    A person who studies or explores caves or studies the science of speleology.

Recorded use

Wiktionary examples

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

  1. Under this heading M. E. A. Martel, the distinguished speleologist or cave-explorer of Europe, whose researches have recently added considerably to our knowledge of the Adelsberg grotto, furnishes to La Nature an interesting account of the episode in the Lueg-Loch or Lur-Loch, near the Styrian capital, which so nearly resulted fatally to the seven members…
  2. The first man known to have descended Gaping Gill is well known on the Continent as an expert cave-explorer or speleologist — to use the new term which he perhaps invented.

Etymology

From speleology + -ist.

Synonyms

This word in other languages

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 "speleologist"?
"speleologist" is spelled S-P-E-L-E-O-L-O-G-I-S-T.
What does "speleologist" mean?
As a noun, "speleologist" means: A person who studies or explores caves or studies the science of speleology.
What is the origin of the word "speleologist"?
From speleology + -ist. 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.

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

Source: FrequencyWords open word-frequency list