reactorvsrectoTell them apart

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

Which to use

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

#14,438
“reactor” frequency rank
#10,058
“recto” frequency rank
24496
confusion score

Side-by-Side Comparison

Feature reactor recto
Definition Un tipo de motor.^([definición imprecisa]) Que tiene la forma que sigue el camino más corto entre dos puntos, sin inclinarse, ni torcerse, ni cambiar de dirección.

Where the eye mixes reactor and recto

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

7 ch
reactor
5 ch
recto

Why the eye confuses reactor with recto

These two trip readers on the page rather than in the ear: reactor is [reakˈt̪oɾ] while recto is [ˈrekt̪o]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 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 24496, derived from the frequency rank of both members and their visual similarity.

reactor is recorded at frequency rank #14,438, classified as anoun, pronounced [reakˈt̪oɾ]. recto is at rank #10,058, tagged as anadj, pronounced [ˈrekt̪o].

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 24496, this pair ranks #240,909 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of reactor vs recto

Shared letters: ceort. Private to "reactor": a. Private to "recto": -.

"reactor" · 7 letters · shape CVVCCVC  ·  "recto" · 5 letters · shape CVCCV

Known mistypes of this pair

  • reactoreractor · raector · reacctor · reacotr · reactorr · reactro · reacttor · reatcor
  • rectoercto · rceto · reccto · recot · rectto · retco · rrecto

Frequently Asked Questions

Can "reactor" and "recto" be used interchangeably?
No - they are not even the same part of speech. "reactor" is a noun and "recto" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "reactor" or "recto" show up more?
"recto" is the more common of the two: it sits at frequency rank #10,058 in our Spanish list, against #14,438 for "reactor". 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 "reactor" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "recto" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #240,909 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "reactor" and "recto" also get mixed up with nearby pairs, the highest-scored neighbour is "raptor vs reactor". 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 #240,909 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