Which to use
“prólogo” is a noun and “prolonga” is a verb - they look or sound alike but fill different roles in a sentence.
- #10,914
- “prólogo” frequency rank
- #28,520
- “prolonga” frequency rank
- 39434
- confusion score
Side-by-Side Comparison
| Feature | prólogo | prolonga |
|---|---|---|
| Definition | En un libro de cualquier género, introducción al cuerpo de la obra donde se suelen reseñar los méritos y valores, o a situarla en medio del contexto o circunstancias de la misma. | Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del presente de indicativo de prolongar o de prolongarse. |
Where the eye mixes prólogo and prolonga
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Why the eye confuses prólogo with prolonga
These two trip readers on the page rather than in the ear: prólogo is [ˈpɾoloɣ̞o] while prolonga is [pɾoˈlõŋga]. 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 verb), which is usually the fastest check. Our composite confusion score for this pair is 39434, derived from the frequency rank of both members and their visual similarity.
prólogo is recorded at frequency rank #10,914, classified as anoun, pronounced [ˈpɾoloɣ̞o]. prolonga is at rank #28,520, tagged as averb, pronounced [pɾoˈlõŋga].
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 39434, this pair ranks #164,500 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of prólogo vs prolonga
Shared letters: glopr. Private to "prólogo": ó. Private to "prolonga": an.
"prólogo" · 7 letters · shape CCVCVCV · "prolonga" · 8 letters · shape CCVCVCCV
Known mistypes of this pair
- prolonga ← porlonga · pprolonga · prloonga · prollonga · prolnoga · prologna · prolonag · prolongga
Frequently Asked Questions
Can "prólogo" and "prolonga" be used interchangeably?
Which is more common, "prólogo" or "prolonga"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "prólogo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "prolonga" - compare definitions side by side with the headword page. Word entry
- This pair ranks #164,500 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "prólogo" and "prolonga" also get mixed up with nearby pairs, the highest-scored neighbour is "prolonga vs propongan". 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 #164,500 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.