Which to use
“redundancy” is a noun and “redundant” is an adjective - they look or sound alike but fill different roles in a sentence.
- #19,184
- “redundancy” frequency rank
- #13,224
- “redundant” frequency rank
- 32408
- confusion score
Side-by-Side Comparison
| Feature | redundancy | redundant |
|---|---|---|
| Definition | The state of being redundant. | Superfluous; exceeding what is necessary, no longer needed. |
Where the eye mixes redundancy and redundant
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.
Look-alike desk: redundancy vs redundant
These two trip readers on the page rather than in the ear: redundancy is /ɹɪˈdʌnd(ə)nsi/ while redundant is /ɹɪˈdʌn.dənt/. 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 32408, derived from the frequency rank of both members and their visual similarity.
redundancy is recorded at frequency rank #19,184, classified as anoun, pronounced /ɹɪˈdʌnd(ə)nsi/. redundant is at rank #13,224, tagged as anadj, pronounced /ɹɪˈdʌn.dənt/.
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 32408, this pair ranks #338,021 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of redundancy vs redundant
Shared letters: adenru. Private to "redundancy": cy. Private to "redundant": t.
"redundancy" · 10 letters · shape CVCVCCVCCV · "redundant" · 9 letters · shape CVCVCCVCC
Known mistypes of this pair
- redundancy ← erdundancy · rdeundancy · reddundancy · rednudancy · redudnancy · redunadncy · redundacny · redundanccy
- redundant ← erdundant · rdeundant · reddundant · rednudant · redudnant · redunadnt · redundannt · redundantt
Frequently Asked Questions
Do "redundancy" and "redundant" mean the same thing in a sentence?
Which is more common, "redundancy" or "redundant"?
After this comparison
Eye-level mix-up between "redundancy" and "redundant" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "redundancy" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "redundant" - compare definitions side by side with the headword page. Word entry
- This pair ranks #338,021 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- 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 #338,021 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.