somnambulist

[sɒmˈnæmbjʊlɪst]

/[sɒmˈnæmbjʊlɪst]/ noun

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

The verdict

“somnambulist” 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 walks about in their sleep; a sleepwalker.

Corpus desk

Index EN-somnambulist · somnambulist · English

somnambulist · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 12 letters
  • VOW-4 4 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 somnambulist
PropertyValue
Headwordsomnambulist
LanguageEnglish
Part of speechNoun
IPA[sɒmˈnæmbjʊlɪst]
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “somnambulist” in English

somnambulistfalls outside the top-100,000 ranked English 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

somnambulist is uncommon English outside the top frequency list, classed as anoun, transcribed [sɒmˈnæmbjʊlɪst]. Rarity is why readers land here mid-draft. Gloss: "A person who walks about in their sleep; a sleepwalker.".

No generated misspelling entries exist for somnambulist in our index, a sign its spelling follows regular English conventions. Our confusable-pair dataset has no match for it, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: Borrowed from French somnambuliste, from Medieval Latin somnambulus (“sleepwalker”). By surface analysis, somn- + -ambulist. The correct English form is somnambulist, spelled S-O-M-N-A-M-B-U-L-I-S-T.

Definition

  1. 1
    A person who walks about in their sleep; a sleepwalker.

Recorded use

Wiktionary examples

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

  1. The clergyman floundered a moment, as is usual with an absent man who is recovering the train of his ideas, or a somnambulist when he is suddenly awakened.
  2. The slim one got up and walked straight at me - still knitting with downcast eyes - and only just as I began to think of getting out of her way, as you would for a somnambulist, stood still, and looked up.

Etymology

Borrowed from French somnambuliste, from Medieval Latin somnambulus (“sleepwalker”). By surface analysis, somn- + -ambulist.

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 "somnambulist"?
"somnambulist" is spelled S-O-M-N-A-M-B-U-L-I-S-T. The IPA pronunciation is [sɒmˈnæmbjʊlɪst].
What does "somnambulist" mean?
As a noun, "somnambulist" means: A person who walks about in their sleep; a sleepwalker.
How do you pronounce "somnambulist"?
The IPA (International Phonetic Alphabet) transcription for "somnambulist" is [sɒmˈnæmbjʊlɪst]. 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 "somnambulist"?
Borrowed from French somnambuliste, from Medieval Latin somnambulus (“sleepwalker”). By surface analysis, somn- + -ambulist. 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