Which to use
“reacción” is a noun and “reaccionan” is a verb - they look or sound alike but fill different roles in a sentence.
- #2,267
- “reacción” frequency rank
- #21,126
- “reaccionan” frequency rank
- 23393
- confusion score
Side-by-Side Comparison
| Feature | reacción | reaccionan |
|---|---|---|
| Definition | Hecho o acción que se opone o resiste a otra, obrando en sentido contrario a ella. | Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del presente de indicativo de reaccionar. |
Where the eye mixes reacción and reaccionan
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. reacción runs 8 letters (CVVCCVVC) against reaccionan's 10 (CVVCCVVCVC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between reacción and reaccionan
These two trip readers on the page rather than in the ear: reacción is [reakˈsjõn] while reaccionan is [reakˈsjonãn]. 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 verb), which is usually the fastest check. Our composite confusion score for this pair is 23393, derived from the frequency rank of both members and their visual similarity.
reacción is recorded at frequency rank #2,267, classified as anoun, pronounced [reakˈsjõn]. reaccionan is at rank #21,126, tagged as averb, pronounced [reakˈsjonãn].
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 23393, this pair ranks #246,005 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of reacción vs reaccionan
Shared letters: aceinr. Private to "reacción": ó. Private to "reaccionan": o.
"reacción" · 8 letters · shape CVVCCVVC · "reaccionan" · 10 letters · shape CVVCCVVCVC
Known mistypes of this pair
- reaccionan ← eraccionan · raeccionan · reaccinoan · reaccioann · reaccionann · reaccionna · reaccionnan · reaccoinan
Frequently Asked Questions
Can "reacción" and "reaccionan" be used interchangeably?
Which is more common, "reacción" or "reaccionan"?
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 "reacción" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "reaccionan" - compare definitions side by side with the headword page. Word entry
- This pair ranks #246,005 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "reacción" and "reaccionan" also get mixed up with nearby pairs, the highest-scored neighbour is "reaccionan vs reaccionaron". 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 #246,005 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.