Which to use
“rubis” and “ruby” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #19,143
- “rubis” frequency rank
- #19,668
- “ruby” frequency rank
- 38811
- confusion score
Side-by-Side Comparison
| Feature | rubis | ruby |
|---|---|---|
| Definition | Pierre précieuse très dure, transparente et d’un rouge plus ou moins vif. Sa formule chimique est Al₂O₃:Cr. | Rubis. |
Where the eye mixes rubis and ruby
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between rubis and ruby
A purely visual mix-up. rubis (\ʁy.bi\) and ruby (\ˈɹuː.bi\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 38811, derived from the frequency rank of both members and their visual similarity.
rubis is recorded at frequency rank #19,143, classified as anoun, pronounced \ʁy.bi\. ruby is at rank #19,668, tagged as anoun, pronounced \ˈɹuː.bi\.
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 38811, this pair ranks #252,631 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rubis vs ruby
Shared letters: bru. Private to "rubis": is. Private to "ruby": y.
"rubis" · 5 letters · shape CVCVC · "ruby" · 4 letters · shape CVCV
Known mistypes of this pair
Frequently Asked Questions
Do "rubis" and "ruby" mean the same thing in a sentence?
Frequency check: "rubis" vs "ruby" - which ranks higher?
Useful next steps
Eye-level mix-up between "rubis" and "ruby" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "rubis" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ruby" - compare definitions side by side with the headword page. Word entry
- This pair ranks #252,631 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "rubis" and "ruby" also get mixed up with nearby pairs, the highest-scored neighbour is "Reis vs rubis". 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 #252,631 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.