immobilization

noun

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

The verdict

“immobilization” is uncommon English (frequency #68,313 among 2,140 “I” headwords), classed as a noun. The kind of spelling people second-guess.

#68,313
frequency rank, English
2,140
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The act or process of preventing a thing from moving.

Corpus desk

Index EN-immobilization · immobilization · English

immobilization · rank #68,313 · 0 variants · 0 confusables

  • FREQ-RARE #68,313
  • LEN-MEGA 14 letters
  • VOW-7 7 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH ICICI

Nearest frequency peer: ICICI (-2 rank slots)

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.

Long-tail ranks near “immobilization”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “immobilization” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for immobilization
PropertyValue
Headwordimmobilization
LanguageEnglish
Part of speechNoun
Letters14
Frequency rank#68,313
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “immobilization” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).immobilizationfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “ICICI” (#68,311), “impingement” (#68,315), “imprimatur” (#68,316). Among 2,140 “I” headwords, “immobilization” is #68,313. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

immobilization is uncommon English at frequency #68,313 among 2,140 “I” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

immobilization has no tracked misspelling variants, since its letter sequence doesn't invite the usual edit-distance slips. This headword has no recorded confusable partner, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From French immobilisation or im- + mobilization or immobilize + -ation. The correct English form is immobilization, spelled I-M-M-O-B-I-L-I-Z-A-T-I-O-N.

Definition

  1. 1
    The act or process of preventing a thing from moving.
  2. 2
    The process in which organic soil matter is decomposed and absorbed by microorganisms, and thus not available to plants.

Recorded use

Wiktionary examples

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

  1. The broken bones were able to heal, thanks to the immobilization of her leg in a cast.
  2. Treatment of an acute occult dislocation of the ankle consists of immobilization in a snugly fitting plaster-of-paris cast, with little padding.

Etymology

From French immobilisation or im- + mobilization or immobilize + -ation.

Antonyms

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); 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 "immobilization"?
"immobilization" is spelled I-M-M-O-B-I-L-I-Z-A-T-I-O-N.
What does "immobilization" mean?
As a noun, "immobilization" means: The act or process of preventing a thing from moving.
What is the origin of the word "immobilization"?
From French immobilisation or im- + mobilization or immobilize + -ation. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "immobilization", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 14 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list