somnambulism
/sɒmˈnæmbjʊlɪzəm/
"somnambulism" is a 12-letter English headword indexed on PlainSpell.
The verdict
“somnambulism” 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) - sleepwalking
Corpus desk
Index EN-somnambulism · somnambulism · English
somnambulism · 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.
| Property | Value |
|---|---|
| Headword | somnambulism |
| Language | English |
| Part of speech | Noun |
| IPA | /sɒmˈnæmbjʊlɪzəm/ |
| Letters | 12 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “somnambulism” in English
Rare enough to double-check
somnambulism is uncommon English outside the top frequency list, classed as anoun, transcribed /sɒmˈnæmbjʊlɪzəm/. Rarity is why readers land here mid-draft. Gloss: "sleepwalking".
We couldn't generate a plausible misspelling set for somnambulism, typically a sign the spelling maps closely to how the word sounds. This headword has no recorded confusable partner, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From French somnambulisme, from New Latin somnambulus, from Latin somnus (“sleep”) + ambulō (“I walk”), + -ism. The correct English form is somnambulism, spelled S-O-M-N-A-M-B-U-L-I-S-M.
Definition
- 1sleepwalking
Recorded use
Wiktionary exampleThese source excerpts show how somnambulism appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Meanwhile, towards the twelfth century, there come to be two weaknesses attached to this state of half-grown youth: by night somnambulism; in the daytime seeing of visions, trance, and the gift of tears.
Etymology
From French somnambulisme, from New Latin somnambulus, from Latin somnus (“sleep”) + ambulō (“I walk”), + -ism.
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.