immunize

/ˈɪm.ju.naɪz/

//ˈɪm.ju.naɪz// verb

"immunize" is a 8-letter English headword indexed on PlainSpell.

The verdict

“immunize” is uncommon English (frequency #88,455 among 2,140 “I” headwords), classed as a verb. The kind of spelling people second-guess.

#88,455
frequency rank, English
2,140
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To make someone or something immune to something.

Corpus desk

Index EN-immunize · immunize · English

immunize · rank #88,455 · 0 variants · 0 confusables

  • FREQ-RARE #88,455
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH immortalize

Nearest frequency peer: immortalize (-1 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 “immunize”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for immunize
PropertyValue
Headwordimmunize
LanguageEnglish
Part of speechVerb
IPA/ˈɪm.ju.naɪz/
Letters8
Frequency rank#88,455
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “immunize” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).immunizefalls in this rarity band:

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

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “immortalize” (#88,454), “incall” (#88,456), “inchoate” (#88,458). Among 2,140 “I” headwords, “immunize” is #88,455. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

immunize is uncommon English at frequency #88,455 among 2,140 “I” headwords, classed as averb, transcribed /ˈɪm.ju.naɪz/. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for immunize in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our dataset records no confusable match here, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From French immuniser, equivalent to immune + -ize. The correct English form is immunize, spelled I-M-M-U-N-I-Z-E.

Definition

  1. 1
    To make someone or something immune to something.
  2. 2
    To inoculate someone, and thus produce immunity from a disease.

Recorded use

Wiktionary examples

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

  1. It is now clear that the brevity of an indecent broadcast – be it word or image – cannot immunize it from FCC censure.
  2. This kind of warfare [i.e., biological] would have us devouring the world’s children in a manner of speaking and those who are immunologically impaired, presuming we were going to immunize our own population but not those of the antagonist. Thus we would be conducting warfare which by definition would be indiscriminate rather than selective. We would lose…

Etymology

From French immuniser, equivalent to immune + -ize.

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 "immunize"?
"immunize" is spelled I-M-M-U-N-I-Z-E. The IPA pronunciation is /ˈɪm.ju.naɪz/.
What does "immunize" mean?
As a verb, "immunize" means: To make someone or something immune to something.
How do you pronounce "immunize"?
The IPA (International Phonetic Alphabet) transcription for "immunize" is /ˈɪm.ju.naɪz/. 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 "immunize"?
From French immuniser, equivalent to immune + -ize. 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 "immunize", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list