Which to use
“define” is a verb and “device” is a noun - they look or sound alike but fill different roles in a sentence.
- #4,224
- “define” frequency rank
- #2,150
- “device” frequency rank
- 6374
- confusion score
Side-by-Side Comparison
| Feature | define | device |
|---|---|---|
| Definition | To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly. | Any piece of equipment made for a particular purpose, especially a mechanical or electrical one. |
Where the eye mixes define and device
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Why the eye confuses define with device
These two trip readers on the page rather than in the ear: define is /dɪˈfaɪn/ while device is /dɪˈvaɪs/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 6374, 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/. device is at rank #2,150, tagged as anoun, pronounced /dɪˈvaɪs/.
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 6374, this pair ranks #511,688 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of define vs device
Shared letters: dei. Private to "define": fn. Private to "device": cv.
"define" · 6 letters · shape CVCVCV · "device" · 6 letters · shape CVCVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "define" for "device" ever safe?
Frequency check: "define" vs "device" - which ranks higher?
Useful next steps
Eye-level mix-up between "define" and "device" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "define" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "device" - compare definitions side by side with the headword page. Word entry
- This pair ranks #511,688 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "define" and "device" also get mixed up with nearby pairs, the highest-scored neighbour is "device vs Devito". 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 #511,688 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.