Which to use
“define” is a verb and “defined” is an adjective - they look or sound alike but fill different roles in a sentence.
- #4,224
- “define” frequency rank
- #2,668
- “defined” frequency rank
- 6892
- confusion score
Side-by-Side Comparison
| Feature | define | defined |
|---|---|---|
| Definition | To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly. | Having a definition or value. |
Where the eye mixes define and defined
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Look-alike desk: define vs defined
These two trip readers on the page rather than in the ear: define is /dɪˈfaɪn/ while defined is /dɪˈfʌɪnd/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “define” sits inside “defined”, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 6892, derived from the frequency rank of both members and their visual similarity.
define is recorded at frequency rank #4,224, classified as averb, pronounced /dɪˈfaɪn/. defined is at rank #2,668, tagged as anadj, pronounced /dɪˈfʌɪnd/.
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 6892, this pair ranks #509,536 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of define vs defined
Shared letters: defin. Private to "define": -. Private to "defined": -.
"define" · 6 letters · shape CVCVCV · "defined" · 7 letters · shape CVCVCVC
Known mistypes of this pair
Frequently Asked Questions
Can "define" and "defined" be used interchangeably?
In ordinary English text, does "define" or "defined" show up more?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "define" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "defined" - compare definitions side by side with the headword page. Word entry
- This pair ranks #509,536 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "define" and "defined" also get mixed up with nearby pairs, the highest-scored neighbour is "defiled vs define". 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 #509,536 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.