Which to use
“extend” and “extended” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #4,016
- “extend” frequency rank
- #2,293
- “extended” frequency rank
- 6309
- confusion score
Side-by-Side Comparison
| Feature | extend | extended |
|---|---|---|
| Definition | To increase in extent. | simple past and past participle of extend |
Where the eye mixes extend and extended
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Why the eye confuses extend with extended
A purely visual mix-up. extend (/ɛkˈstɛnd/) and extended (/ɛkˈstɛndɪd/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 extra letter(s) - “extend” sits inside “extended”. Our composite confusion score for this pair is 6309, derived from the frequency rank of both members and their visual similarity.
extend is recorded at frequency rank #4,016, classified as averb, pronounced /ɛkˈstɛnd/. extended is at rank #2,293, tagged as averb, pronounced /ɛkˈstɛndɪd/.
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 6309, this pair ranks #511,937 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of extend vs extended
Shared letters: dentx. Private to "extend": -. Private to "extended": -.
"extend" · 6 letters · shape VCCVCC · "extended" · 8 letters · shape VCCVCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "extend" for "extended" ever safe?
In ordinary English text, does "extend" or "extended" show up more?
What to do next
Eye-level mix-up between "extend" and "extended" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "extend" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "extended" - compare definitions side by side with the headword page. Word entry
- This pair ranks #511,937 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "extend" and "extended" also get mixed up with nearby pairs, the highest-scored neighbour is "extend vs extender". 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 #511,937 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.