rejavsrocaWhich spelling fits?

Which to use

“reja” and “roca” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#16,966
“reja” frequency rank
#3,444
“roca” frequency rank
20410
confusion score

Side-by-Side Comparison

Feature reja roca
Definition Instrumento de hierro, que es parte del arado y sirve para romper y revolver la tierra. Acumulación sólida y natural de minerales que constituye una gran parte de la corteza terrestre.

Where the eye mixes reja and roca

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

4 ch
reja
4 ch
roca

Why the eye confuses reja with roca

A purely visual mix-up. reja ([ˈrexa]) and roca ([ˈroka]) 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 20410, derived from the frequency rank of both members and their visual similarity.

reja is recorded at frequency rank #16,966, classified as anoun, pronounced [ˈrexa]. roca is at rank #3,444, tagged as anoun, pronounced [ˈroka].

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 20410, this pair ranks #259,458 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of reja vs roca

Shared letters: ar. Private to "reja": ej. Private to "roca": co.

"reja" · 4 letters · shape CVCV  ·  "roca" · 4 letters · shape CVCV

Known mistypes of this pair

  • rejaerja · reaj · rejja · rjea · rreja
  • rocarcoa · roac · rroca

Frequently Asked Questions

Can "reja" and "roca" be used interchangeably?
No. They are said differently ([ˈrexa] versus [ˈroka]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "reja" or "roca"?
"roca" is the more common of the two: it sits at frequency rank #3,444 in our Spanish list, against #16,966 for "reja". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "reja" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "roca" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #259,458 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "reja" and "roca" also get mixed up with nearby pairs, the highest-scored neighbour is "reja vs riba". 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 #259,458 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