energise

verb

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

The verdict

“energise” is uncommon English (frequency #76,755 among 2,246 “E” headwords), classed as a verb. The kind of spelling people second-guess.

#76,755
frequency rank, English
2,246
“E” headwords

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

Corpus desk

Index EN-energise · energise · English

energise · rank #76,755 · 0 variants · 0 confusables

  • FREQ-RARE #76,755
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,246
  • PHOTO-FINISH encumbrance

Nearest frequency peer: encumbrance (-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 “energise”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for energise
PropertyValue
Headwordenergise
LanguageEnglish
Part of speechVerb
Letters8
Frequency rank#76,755
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “energise” 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).energisefalls in this rarity band:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “encumbrance” (#76,754), “Engelmann” (#76,756), “EMM” (#76,753). Among 2,246 “E” headwords, “energise” is #76,755. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

energise is uncommon English at frequency #76,755 among 2,246 “E” headwords, classed as averb. Rarity is why readers land here mid-draft. Gloss: "Non-Oxford British standard spelling of energize.".

No misspelling variants are generated for energise in our index, since its letter pattern doesn't lend itself to common typo substitutions. We don't track a confusable pairing for this entry, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From energy + -ise. The correct English form is energise, spelled E-N-E-R-G-I-S-E.

Definition

  1. 1
    Non-Oxford British standard spelling of energize.

Recorded use

Wiktionary example

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

  1. The 13-mile section from Tring to Watford, on which work is further ahead than elsewhere south of Rugby, is likely to be energised for crew training in advance of the Rugby-Euston extension; a Crewe-Liverpool multiple-unit set is already at Stonebridge Park depot ready for use on this work.

Etymology

From energy + -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 "energise"?
"energise" is spelled E-N-E-R-G-I-S-E.
What does "energise" mean?
As a verb, "energise" means: Non-Oxford British standard spelling of energize.
What is the origin of the word "energise"?
From energy + -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 "energise", 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