Which to use
“defect” is a noun and “defunct” is an adjective - they look or sound alike but fill different roles in a sentence.
- #11,531
- “defect” frequency rank
- #20,088
- “defunct” frequency rank
- 31619
- confusion score
Side-by-Side Comparison
| Feature | defect | defunct |
|---|---|---|
| Definition | A fault or malfunction. | No longer in use or active, nor expected to be again. |
Where the eye mixes defect and defunct
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Look-alike desk: defect vs defunct
These two trip readers on the page rather than in the ear: defect is /ˈdiːfɛkt/ while defunct is /dɪˈfʌŋkt/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 31619, derived from the frequency rank of both members and their visual similarity.
defect is recorded at frequency rank #11,531, classified as anoun, pronounced /ˈdiːfɛkt/. defunct is at rank #20,088, tagged as anadj, pronounced /dɪˈfʌŋkt/.
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 31619, this pair ranks #344,644 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of defect vs defunct
Shared letters: cdeft. Private to "defect": -. Private to "defunct": nu.
"defect" · 6 letters · shape CVCVCC · "defunct" · 7 letters · shape CVCVCCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "defect" for "defunct" ever safe?
Frequency check: "defect" vs "defunct" - which ranks higher?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "defect" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "defunct" - compare definitions side by side with the headword page. Word entry
- This pair ranks #344,644 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "defect" and "defunct" also get mixed up with nearby pairs, the highest-scored neighbour is "defect vs defector". 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 #344,644 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.