ratvsRuthWhich spelling fits?

Quick tell: rat is a noun, Ruth is a name, so they fill different roles in a sentence.

Which to use

“rat” is a noun and “Ruth” is a name - they look or sound alike but fill different roles in a sentence.

#41,577
“rat” frequency rank
#11,858
“Ruth” frequency rank
53435
confusion score

Side-by-Side Comparison

Feature rat Ruth
Definition Rata Nombre de pila de mujer.

Where the eye mixes rat and Ruth

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

3 ch
rat
4 ch
Ruth

Why the eye confuses rat with Ruth

These two trip readers on the page rather than in the ear: rat is [ɹæt] while Ruth is [ˈrut̪]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 53435, derived from the frequency rank of both members and their visual similarity.

rat is recorded at frequency rank #41,577, classified as anoun, pronounced [ɹæt]. Ruth is at rank #11,858, tagged as aname, pronounced [ˈrut̪].

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 53435, this pair ranks #87,884 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of rat vs Ruth

Shared letters: rt. Private to "rat": a. Private to "Ruth": hu.

"rat" · 3 letters · shape CVC  ·  "Ruth" · 4 letters · shape CVCC

Known mistypes of this pair

  • Ruthrruth · rtuh · ruht · ruthh · rutth · urth

Frequently Asked Questions

Can "rat" and "Ruth" be used interchangeably?
No - they are not even the same part of speech. "rat" is a noun and "Ruth" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "rat" vs "Ruth" - which ranks higher?
"Ruth" is the more common of the two: it sits at frequency rank #11,858 in our Spanish list, against #41,577 for "rat". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "rat" 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 #87,884 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "rat" and "Ruth" also get mixed up with nearby pairs, the highest-scored neighbour is "rasta vs rat". 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 #87,884 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list