Which to use
“secure” is an adjective and “serrure” is a noun - they look or sound alike but fill different roles in a sentence.
- #40,492
- “secure” frequency rank
- #13,908
- “serrure” frequency rank
- 54400
- confusion score
Side-by-Side Comparison
| Feature | secure | serrure |
|---|---|---|
| Definition | Sécurisé, sûr. | Mécanisme permettant d'ouvrir ou de fermer une porte, un panneau, un vantail, etc., au moyen d’une clé. |
Where the eye mixes secure and serrure
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Why the eye confuses secure with serrure
These two trip readers on the page rather than in the ear: secure is \sɪ.ˈkjʊə(ɹ)\ while serrure is \se.ʁyʁ\. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 54400, derived from the frequency rank of both members and their visual similarity.
secure is recorded at frequency rank #40,492, classified as anadj, pronounced \sɪ.ˈkjʊə(ɹ)\. serrure is at rank #13,908, tagged as anoun, pronounced \se.ʁyʁ\.
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 54400, this pair ranks #134,290 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of secure vs serrure
Shared letters: ersu. Private to "secure": c. Private to "serrure": -.
"secure" · 6 letters · shape CVCVCV · "serrure" · 7 letters · shape CVCCVCV
Known mistypes of this pair
Frequently Asked Questions
Do "secure" and "serrure" mean the same thing in a sentence?
Frequency check: "secure" vs "serrure" - which ranks higher?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "secure" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "serrure" - compare definitions side by side with the headword page. Word entry
- This pair ranks #134,290 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "secure" and "serrure" also get mixed up with nearby pairs, the highest-scored neighbour is "sciure vs secure". 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 #134,290 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.