familiarise

verb

By · According to Wiktionary data (CC BY-SA) ·

"familiarise" is a 11-letter English headword indexed on PlainSpell.

The verdict

“familiarise” is uncommon English (frequency #72,298 among 2,507 “F” headwords), classed as a verb. The kind of spelling people second-guess.

#72,298
frequency rank, English
2,507
“F” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Non-Oxford British English standard spelling of familiarize.

Corpus desk

Index EN-familiarise · familiarise · English

familiarise · rank #72,298 · 0 variants · 0 confusables

  • FREQ-RARE #72,298
  • LEN-MEGA 11 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,507
  • PHOTO-FINISH Fama

Nearest frequency peer: Fama (-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 “familiarise”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for familiarise
PropertyValue
Headwordfamiliarise
LanguageEnglish
Part of speechVerb
Letters11
Frequency rank#72,298
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “familiarise” 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).familiarisefalls 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: “Fama” (#72,297), “Faraj” (#72,300), “factbook” (#72,294). Among 2,507 “F” headwords, “familiarise” is #72,298. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

familiarise is uncommon English at frequency #72,298 among 2,507 “F” headwords, classed as averb. Rarity is why readers land here mid-draft. Gloss: "Non-Oxford British English standard spelling of familiarize.".

We couldn't generate a plausible misspelling set for familiarise, since its letter pattern doesn't lend itself to common typo substitutions. Our confusable-pair dataset has no match for it, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From familiar + -ise. The correct English form is familiarise, spelled F-A-M-I-L-I-A-R-I-S-E.

Definition

  1. 1
    Non-Oxford British English standard spelling of familiarize.

Recorded use

Wiktionary examples

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

  1. An interesting feature in the weeks preceding the diversions was the provision of a road-learning train to familiarise main line drivers with the alternative route.
  2. Mr Avery was a great believer in mnemonics; he had one for every possible aspect of flying – which was as good a way as any for student pilots to familiarise themselves with their new environment […]

Etymology

From familiar + -ise.

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 "familiarise"?
"familiarise" is spelled F-A-M-I-L-I-A-R-I-S-E.
What does "familiarise" mean?
As a verb, "familiarise" means: Non-Oxford British English standard spelling of familiarize.
What is the origin of the word "familiarise"?
From familiar + -ise. 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 "familiarise", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 11 letters (nearest by frequency rank).

festschrift#72,309endocytosis#72,276curtailment#72,219comradeship#72,198

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

Source: FrequencyWords open word-frequency list