raravsrascaWhich spelling fits?

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

Which to use

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

#3,210
“rara” frequency rank
#33,805
“rasca” frequency rank
37015
confusion score

Side-by-Side Comparison

Feature rara rasca
Definition (Phytotoma rara) Ave sudamericana de la familia Phytotomidae. Mide 19 cm. De plumaje en distintos tonos de pardo con secciones negruzcas, frente y corona pardo rojizas, pico corto y grueso de color negro e iris rojos, con dimorfismo sexual. Se alimenta de plantas y de brotes tiernos de árboles. Ave solitaria, que en algunas épocas del año forma pequeñas bandadas. Frecuenta campos, huertos y jardines. Su canto suena como el chirrido de una puerta al abrirse. Dicho de una cosa, de muy mala calidad.

Where the eye mixes rara and rasca

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
rara
5 ch
rasca

Why the eye confuses rara with rasca

These two trip readers on the page rather than in the ear: rara is [ˈraɾa] while rasca is [ˈraska]. 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 adjective), which is usually the fastest check. Our composite confusion score for this pair is 37015, derived from the frequency rank of both members and their visual similarity.

rara is recorded at frequency rank #3,210, classified as anoun, pronounced [ˈraɾa]. rasca is at rank #33,805, tagged as anadj, pronounced [ˈraska].

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 37015, this pair ranks #177,590 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of rara vs rasca

Shared letters: ar. Private to "rara": -. Private to "rasca": cs.

"rara" · 4 letters · shape CVCV  ·  "rasca" · 5 letters · shape CVCCV

Known mistypes of this pair

  • raraarra · raar · rarra · rraa · rrara
  • rascaarsca · racsa · rasac · rascca · rassca · rrasca · rsaca

Frequently Asked Questions

Is swapping "rara" for "rasca" ever safe?
No - they are not even the same part of speech. "rara" is a noun and "rasca" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "rara" or "rasca"?
"rara" is the more common of the two: it sits at frequency rank #3,210 in our Spanish list, against #33,805 for "rasca". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Eye-level mix-up between "rara" and "rasca" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "rara" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "rasca" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #177,590 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "rara" and "rasca" also get mixed up with nearby pairs, the highest-scored neighbour is "rasca vs rasta". 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 #177,590 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