contaminadavscontaminanTell them apart

Quick tell: contaminada is a participle, contaminan is a verb, so they fill different roles in a sentence.

Which to use

“contaminada” is a participle and “contaminan” is a verb - they look or sound alike but fill different roles in a sentence.

#22,998
“contaminada” frequency rank
#35,960
“contaminan” frequency rank
58958
confusion score

Side-by-Side Comparison

Feature contaminada contaminan
Definition Forma del femenino de contaminado, participio de contaminar. Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del presente de indicativo de contaminar.

Where the eye mixes contaminada and contaminan

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. contaminada runs 11 letters (CVCCVCVCVCV) against contaminan's 10 (CVCCVCVCVC) - the length gap alone is often enough to separate them once you know to check it.

11 ch
contaminada
10 ch
contaminan

Visual trap between contaminada and contaminan

These two trip readers on the page rather than in the ear: contaminada is [kõn̪t̪amiˈnað̞a] while contaminan is [kõn̪t̪aˈminãn]. 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 (participle vs verb), which is usually the fastest check. Our composite confusion score for this pair is 58958, derived from the frequency rank of both members and their visual similarity.

contaminada is recorded at frequency rank #22,998, classified as aparticiple, pronounced [kõn̪t̪amiˈnað̞a]. contaminan is at rank #35,960, tagged as averb, pronounced [kõn̪t̪aˈminãn].

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 58958, this pair ranks #64,458 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of contaminada vs contaminan

Shared letters: acimnot. Private to "contaminada": d. Private to "contaminan": -.

"contaminada" · 11 letters · shape CVCCVCVCVCV  ·  "contaminan" · 10 letters · shape CVCCVCVCVC

Known mistypes of this pair

  • contaminada ← ccontaminada · cnotaminada · conatminada · conntaminada · contaimnada · contamianda · contaminaad · contaminadda
  • contaminan ← ccontaminan · cnotaminan · conatminan · conntaminan · contaimnan · contamiann · contaminann · contaminnan

Frequently Asked Questions

Can "contaminada" and "contaminan" be used interchangeably?
No - they are not even the same part of speech. "contaminada" is a participle and "contaminan" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "contaminada" or "contaminan" show up more?
"contaminada" is the more common of the two: it sits at frequency rank #22,998 in our Spanish list, against #35,960 for "contaminan". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "contaminada" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "contaminan" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #64,458 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "contaminada" and "contaminan" also get mixed up with nearby pairs, the highest-scored neighbour is "contaminan vs contaminando". 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 #64,458 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