immobilisation

noun

"immobilisation" is a 14-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
14
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Alternative spelling of immobilization.

Corpus desk

Index EN-immobilisation · immobilisation · English

immobilisation · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 14 letters
  • VOW-7 7 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "I" 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 immobilisation
PropertyValue
Headwordimmobilisation
LanguageEnglish
Part of speechNoun
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “immobilisation” in English

immobilisationranks 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

immobilisation is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Alternative spelling of immobilization.".

We couldn't generate a plausible misspelling set for immobilisation, a sign its spelling follows regular English conventions. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From French immobilisation. The correct English form is immobilisation, spelled I-M-M-O-B-I-L-I-S-A-T-I-O-N.

Definition

  1. 1
    Alternative spelling of immobilization.

Etymology

From French immobilisation.

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 "immobilisation"?
"immobilisation" is spelled I-M-M-O-B-I-L-I-S-A-T-I-O-N.
What does "immobilisation" mean?
As a noun, "immobilisation" means: Alternative spelling of immobilization.
What is the origin of the word "immobilisation"?
From French immobilisation. 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