Which to use
“rust” and “ruth” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #37,050
- “rust” frequency rank
- #12,858
- “ruth” frequency rank
- 49908
- confusion score
Side-by-Side Comparison
| Feature | rust | ruth |
|---|---|---|
| Definition | Rouille. | Pitié. |
Where the eye mixes rust and ruth
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between rust and ruth
A purely visual mix-up. rust (\ɻʌst\) and ruth (\ɹuːθ\) 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 49908, derived from the frequency rank of both members and their visual similarity.
rust is recorded at frequency rank #37,050, classified as anoun, pronounced \ɻʌst\. ruth is at rank #12,858, tagged as anoun, pronounced \ɹuːθ\.
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 49908, this pair ranks #166,899 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rust vs ruth
Shared letters: rtu. Private to "rust": s. Private to "ruth": h.
"rust" · 4 letters · shape CVCC · "ruth" · 4 letters · shape CVCC
Known mistypes of this pair
Frequently Asked Questions
Can "rust" and "ruth" be used interchangeably?
Which is more common, "rust" or "ruth"?
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 "rust" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ruth" - compare definitions side by side with the headword page. Word entry
- This pair ranks #166,899 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "rust" and "ruth" also get mixed up with nearby pairs, the highest-scored neighbour is "rouet vs rust". 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 #166,899 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.