filtrarvsfiltrosWhich spelling fits?

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

Which to use

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

#16,339
“filtrar” frequency rank
#8,120
“filtros” frequency rank
24459
confusion score

Side-by-Side Comparison

Feature filtrar filtros
Definition Hacer pasar un líquido por un filtro. Forma del plural de filtro.

Where the eye mixes filtrar and filtros

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. filtrar and filtros follow the identical consonant-vowel pattern (CVCCCVC). Same shape at a glance is often the real trap, independent of shared letters.

7 ch
filtrar
7 ch
filtros

Visual trap between filtrar and filtros

These two trip readers on the page rather than in the ear: filtrar is [fil̪ˈt̪ɾaɾ] while filtros is [ˈfil̪t̪ɾos]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 24459, derived from the frequency rank of both members and their visual similarity.

filtrar is recorded at frequency rank #16,339, classified as averb, pronounced [fil̪ˈt̪ɾaɾ]. filtros is at rank #8,120, tagged as anoun, pronounced [ˈfil̪t̪ɾos].

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 24459, this pair ranks #241,077 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of filtrar vs filtros

Shared letters: filrt. Private to "filtrar": a. Private to "filtros": os.

"filtrar" · 7 letters · shape CVCCCVC  ·  "filtros" · 7 letters · shape CVCCCVC

Known mistypes of this pair

  • filtrar ← ffiltrar · filltrar · filrtar · filtarr · filtrarr · filtrra · filtrrar · filttrar
  • filtros ← ffiltros · filltros · filrtos · filtors · filtross · filtrros · filtrso · filttros

Frequently Asked Questions

Is swapping "filtrar" for "filtros" ever safe?
No - they are not even the same part of speech. "filtrar" is a verb and "filtros" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "filtrar" or "filtros" show up more?
"filtros" is the more common of the two: it sits at frequency rank #8,120 in our Spanish list, against #16,339 for "filtrar". 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 "filtrar" and "filtros" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "filtrar" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "filtros" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #241,077 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "filtrar" and "filtros" also get mixed up with nearby pairs, the highest-scored neighbour is "filtrar vs filtraron". 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 #241,077 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