Which to use
“organise” is a verb and “organiser” is a noun - they look or sound alike but fill different roles in a sentence.
- #15,015
- “organise” frequency rank
- #25,156
- “organiser” frequency rank
- 40171
- confusion score
Side-by-Side Comparison
| Feature | organise | organiser |
|---|---|---|
| Definition | Non-Oxford British standard spelling of organize. | Non-Oxford British English standard spelling of organizer. |
Letter map: organise vs organiser
Shared letters muted; letters that set organise and organiser apart highlighted. Shared run: 8. organise runs 8 letters (VCCVCVCV) against organiser's 9 (VCCVCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Role in the sentence - organise and organiser
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: organise is averb and organiseranoun. On the page they differ by 1 extra letter(s) - “organise” sits inside “organiser”. Our composite confusion score for this pair is 40171, derived from the frequency rank of both members and their visual similarity.
organise is recorded at frequency rank #15,015, classified as averb. organiser is at rank #25,156, tagged as anoun.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 40171, this pair ranks #270,001 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of organise vs organiser
Shared letters: aeginors. Private to "organise": -. Private to "organiser": -.
"organise" · 8 letters · shape VCCVCVCV · "organiser" · 9 letters · shape VCCVCVCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "organise" for "organiser" ever safe?
Which is more common, "organise" or "organiser"?
Useful next steps
You've compared "organise" and "organiser". Here's where to go from here.
- Full dictionary entry for "organise" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "organiser" - compare definitions side by side with the headword page. Word entry
- This pair ranks #270,001 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "organise" and "organiser" also get mixed up with nearby pairs, the highest-scored neighbour is "organiser vs organist". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #270,001 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.