Which to use
“jack” and “jais” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #2,782
- “jack” frequency rank
- #46,247
- “jais” frequency rank
- 49029
- confusion score
Side-by-Side Comparison
| Feature | jack | jais |
|---|---|---|
| Definition | Prise, fiche mâle. | Bois fossile, assez dur pour être taillé; il s'agit spécifiquement d'une sorte de houille, le lignite piciforme, dont on peut faire de petits ouvrages, colliers, bracelets, boutons de deuil, etc. |
Where the eye mixes jack and jais
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses jack with jais
A purely visual mix-up. jack (\dʒak\) and jais (\ʒɛ\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 49029, derived from the frequency rank of both members and their visual similarity.
jack is recorded at frequency rank #2,782, classified as anoun, pronounced \dʒak\. jais is at rank #46,247, tagged as anoun, pronounced \ʒɛ\.
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 49029, this pair ranks #174,048 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of jack vs jais
Shared letters: aj. Private to "jack": ck. Private to "jais": is.
"jack" · 4 letters · shape CVCC · "jais" · 4 letters · shape CVVC
Known mistypes of this pair
Frequently Asked Questions
Can "jack" and "jais" be used interchangeably?
Frequency check: "jack" vs "jais" - which ranks higher?
Useful next steps
Eye-level mix-up between "jack" and "jais" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "jack" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "jais" - compare definitions side by side with the headword page. Word entry
- This pair ranks #174,048 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "jack" and "jais" also get mixed up with nearby pairs, the highest-scored neighbour is "jais vs jama". 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 #174,048 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.