contagiarvscontagioWhat's the difference?

Quick tell: contagiar is a verb, contagio is a noun, so they fill different roles in a sentence.

Which to use

“contagiar” is a verb and “contagio” is a noun - they look or sound alike but fill different roles in a sentence.

#36,996
“contagiar” frequency rank
#16,060
“contagio” frequency rank
53056
confusion score

Side-by-Side Comparison

Feature contagiar contagio
Definition Pasar un agente patógeno (como un virus o una infección) de algún ser vivo a otro; propagar una enfermedad por contagio. Acción o efecto de contagiar (transmitir un agente patógeno).

Where the eye mixes contagiar and contagio

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. contagiar runs 9 letters (CVCCVCVVC) against contagio's 8 (CVCCVCVV) - the length gap alone is often enough to separate them once you know to check it.

9 ch
contagiar
8 ch
contagio

Look-alike desk: contagiar vs contagio

These two trip readers on the page rather than in the ear: contagiar is [kõn̪t̪aˈxjaɾ] while contagio is [kõn̪ˈt̪axjo]. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 53056, derived from the frequency rank of both members and their visual similarity.

contagiar is recorded at frequency rank #36,996, classified as averb, pronounced [kõn̪t̪aˈxjaɾ]. contagio is at rank #16,060, tagged as anoun, pronounced [kõn̪ˈt̪axjo].

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 53056, this pair ranks #89,704 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of contagiar vs contagio

Shared letters: acginot. Private to "contagiar": r. Private to "contagio": -.

"contagiar" · 9 letters · shape CVCCVCVVC  ·  "contagio" · 8 letters · shape CVCCVCVV

Known mistypes of this pair

  • contagiar ← ccontagiar · cnotagiar · conatgiar · conntagiar · contagair · contaggiar · contagiarr · contagira
  • contagio ← ccontagio · cnotagio · conatgio · conntagio · contaggio · contagoi · contaigo · contgaio

Frequently Asked Questions

Is swapping "contagiar" for "contagio" ever safe?
No - they are not even the same part of speech. "contagiar" is a verb and "contagio" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "contagiar" or "contagio" show up more?
"contagio" is the more common of the two: it sits at frequency rank #16,060 in our Spanish list, against #36,996 for "contagiar". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "contagiar" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "contagio" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #89,704 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "contagiar" and "contagio" also get mixed up with nearby pairs, the highest-scored neighbour is "consagrar vs contagiar". 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 #89,704 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