Which to use
“defend” is a verb and “defense” is a noun - they look or sound alike but fill different roles in a sentence.
- #3,159
- “defend” frequency rank
- #1,247
- “defense” frequency rank
- 4406
- confusion score
Side-by-Side Comparison
| Feature | defend | defense |
|---|---|---|
| Definition | To ward off attacks against; to fight to protect; to guard. | The action of defending or protecting from attack, danger, or injury. |
Where the eye mixes defend and defense
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. defend runs 6 letters (CVCVCC) against defense's 7 (CVCVCCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses defend with defense
These two trip readers on the page rather than in the ear: defend is /dɪˈfɛnd/ while defense is /dɪˈfɛns/. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 4406, derived from the frequency rank of both members and their visual similarity.
defend is recorded at frequency rank #3,159, classified as averb, pronounced /dɪˈfɛnd/. defense is at rank #1,247, tagged as anoun, pronounced /dɪˈfɛns/.
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 4406, this pair ranks #519,045 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of defend vs defense
Shared letters: defn. Private to "defend": -. Private to "defense": s.
"defend" · 6 letters · shape CVCVCC · "defense" · 7 letters · shape CVCVCCV
Known mistypes of this pair
Frequently Asked Questions
Can "defend" and "defense" be used interchangeably?
Frequency check: "defend" vs "defense" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "defend" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "defense" - compare definitions side by side with the headword page. Word entry
- This pair ranks #519,045 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "defend" and "defense" also get mixed up with nearby pairs, the highest-scored neighbour is "defense vs defuse". 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 #519,045 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.