rubyvsruséTell them apart

Quick tell: ruby is a noun, rusé is an adjective, so they fill different roles in a sentence.

Which to use

“ruby” is a noun and “rusé” is an adjective - they look or sound alike but fill different roles in a sentence.

#19,668
“ruby” frequency rank
#28,728
“rusé” frequency rank
48396
confusion score

Side-by-Side Comparison

Feature ruby rusé
Definition Rubis. Qui a de la ruse, qui est plein de ruses.

Where the eye mixes ruby and rusé

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
ruby
4 ch
rusé

Why the eye confuses ruby with rusé

These two trip readers on the page rather than in the ear: ruby is \ˈɹuː.bi\ while rusé is \ʁy.ze\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 48396, derived from the frequency rank of both members and their visual similarity.

ruby is recorded at frequency rank #19,668, classified as anoun, pronounced \ˈɹuː.bi\. rusé is at rank #28,728, tagged as anadj, pronounced \ʁy.ze\.

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 48396, this pair ranks #179,261 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ruby vs rusé

Shared letters: ru. Private to "ruby": by. Private to "rusé": .

"ruby" · 4 letters · shape CVCV  ·  "rusé" · 4 letters · shape CVCV

Known mistypes of this pair

  • rubyrbuy · rruby · rubby · rubyy · ruyb · urby

Frequently Asked Questions

Can "ruby" and "rusé" be used interchangeably?
No - they are not even the same part of speech. "ruby" is a noun and "rusé" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ruby" or "rusé"?
"ruby" is the more common of the two: it sits at frequency rank #19,668 in our French list, against #28,728 for "rusé". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "ruby" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "rusé" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #179,261 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ruby" and "rusé" also get mixed up with nearby pairs, the highest-scored neighbour is "rusé vs rustre". 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 #179,261 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list