vacinavsvacinarTell them apart

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

Which to use

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

#6,484
“vacina” frequency rank
#40,378
“vacinar” frequency rank
46862
confusion score

Side-by-Side Comparison

Feature vacina vacinar
Definition preparação usada como inoculação preventiva para dar imunidade contra uma doença específica e que usualmente emprega uma forma enfraquecida do agente patogênico praticar a vacinação em

Letter map: vacina vs vacinar

Shared letters muted; letters that set vacina and vacinar apart highlighted. Shared run: 6. vacina runs 6 letters (CVCVCV) against vacinar's 7 (CVCVCVC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
vacina
7 ch
vacinar

Role in the sentence - vacina and vacinar

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: vacina is anoun and vacinaraverb. On the page they differ by 1 extra letter(s) - “vacina” sits inside “vacinar”. Our composite confusion score for this pair is 46862, derived from the frequency rank of both members and their visual similarity.

vacina is recorded at frequency rank #6,484, classified as anoun. vacinar is at rank #40,378, tagged as averb, pronounced /vɐ.si.ˈnaɾ/.

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 46862, this pair ranks #18,441 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of vacina vs vacinar

Shared letters: acinv. Private to "vacina": -. Private to "vacinar": r.

"vacina" · 6 letters · shape CVCVCV  ·  "vacinar" · 7 letters · shape CVCVCVC

Known mistypes of this pair

  • vacina ← avcina · vaccina · vacian · vacinna · vacnia · vaicna · vcaina · vvacina
  • vacinar ← avcinar · vaccinar · vacianr · vacinarr · vacinnar · vacinra · vacniar · vaicnar

Frequently Asked Questions

Do "vacina" and "vacinar" mean the same thing in a sentence?
No - they are not even the same part of speech. "vacina" is a noun and "vacinar" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "vacina" or "vacinar" show up more?
"vacina" is the more common of the two: it sits at frequency rank #6,484 in our Portuguese list, against #40,378 for "vacinar". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "vacina" and "vacinar". Here's where to go from here.

  • Full dictionary entry for "vacina" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "vacinar" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #18,441 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "vacina" and "vacinar" also get mixed up with nearby pairs, the highest-scored neighbour is "vacilar vs vacinar". 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 #18,441 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list