acclimatise

verb

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

The verdict

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

Unranked
below top-frequency English
11
letters

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

Corpus desk

Index EN-acclimatise · acclimatise · English

acclimatise · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "A" 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 acclimatise
PropertyValue
Headwordacclimatise
LanguageEnglish
Part of speechVerb
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “acclimatise” in English

acclimatiseranks 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

acclimatise is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. Gloss: "Non-Oxford British English and New Zealand standard spelling of acclimatize.".

acclimatise has no tracked misspelling variants, a straightforward case of a spelling with little room for common typos. It is not paired with a close-neighbour confusable in our dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From acclimate + -ise. The correct English form is acclimatise, spelled A-C-C-L-I-M-A-T-I-S-E.

Definition

  1. 1
    Non-Oxford British English and New Zealand standard spelling of acclimatize.

Recorded use

Wiktionary example

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

  1. The England manager can be encouraged by more evidence that Rickie Lambert has quickly acclimatised to international football, with another headed goal to add to the one he scored against Scotland, but Welbeck's ban comes at a time when Wayne Rooney and Andy Carroll are already out and Daniel Sturridge is likely to join them.

Etymology

From acclimate + -ise.

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 "acclimatise"?
"acclimatise" is spelled A-C-C-L-I-M-A-T-I-S-E.
What does "acclimatise" mean?
As a verb, "acclimatise" means: Non-Oxford British English and New Zealand standard spelling of acclimatize.
What is the origin of the word "acclimatise"?
From acclimate + -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.

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

Source: FrequencyWords open word-frequency list