rudevsruthTell them apart

Quick tell: rude is a adjective, ruth is a noun, so they fill different roles in a sentence.

Which to use

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

#8,151
“rude” frequency rank
#12,858
“ruth” frequency rank
21009
confusion score

Side-by-Side Comparison

Feature rude ruth
Definition Âpre au toucher ; brut ; dur. Pitié.

Where the eye mixes rude and ruth

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

4 ch
rude
4 ch
ruth

Visual trap between rude and ruth

These two trip readers on the page rather than in the ear: rude is \ʁyd\ while ruth is \ɹuːθ\. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 21009, derived from the frequency rank of both members and their visual similarity.

rude is recorded at frequency rank #8,151, classified as anadj, pronounced \ʁyd\. 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 21009, this pair ranks #365,329 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of rude vs ruth

Shared letters: ru. Private to "rude": de. Private to "ruth": ht.

"rude" · 4 letters · shape CVCV  ·  "ruth" · 4 letters · shape CVCC

Known mistypes of this pair

  • ruderdue · rrude · rudde · rued · urde
  • ruthrruth · rtuh · ruht · ruthh · rutth · urth

Frequently Asked Questions

Can "rude" and "ruth" be used interchangeably?
No - they are not even the same part of speech. "rude" is an adjective and "ruth" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "rude" or "ruth"?
"rude" is the more common of the two: it sits at frequency rank #8,151 in our French list, against #12,858 for "ruth". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "rude" 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 #365,329 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "rude" and "ruth" also get mixed up with nearby pairs, the highest-scored neighbour is "Rune vs ruth". 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 #365,329 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