Which to use
“filiación” and “filtración” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #26,855
- “filiación” frequency rank
- #16,584
- “filtración” frequency rank
- 43439
- confusion score
Side-by-Side Comparison
| Feature | filiación | filtración |
|---|---|---|
| Definition | Descendencia de padres a hijos. | Acción o efecto de filtrar o de filtrarse. |
Where the eye mixes filiación and filtración
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. filiación runs 9 letters (CVCVVCVVC) against filtración's 10 (CVCCCVCVVC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: filiación vs filtración
A purely visual mix-up. filiación ([filjaˈsjõn]) and filtración ([fil̪t̪ɾaˈsjõn]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 43439, derived from the frequency rank of both members and their visual similarity.
filiación is recorded at frequency rank #26,855, classified as anoun, pronounced [filjaˈsjõn]. filtración is at rank #16,584, tagged as anoun, pronounced [fil̪t̪ɾaˈsjõn].
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 43439, this pair ranks #142,646 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of filiación vs filtración
Shared letters: acfilnó. Private to "filiación": -. Private to "filtración": rt.
"filiación" · 9 letters · shape CVCVVCVVC · "filtración" · 10 letters · shape CVCCCVCVVC
Frequently Asked Questions
Can "filiación" and "filtración" be used interchangeably?
Which is more common, "filiación" or "filtración"?
Useful next steps
Eye-level mix-up between "filiación" and "filtración" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "filiación" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "filtración" - compare definitions side by side with the headword page. Word entry
- This pair ranks #142,646 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "filiación" and "filtración" also get mixed up with nearby pairs, the highest-scored neighbour is "figuración vs filtración". Nearby pair
Confusion rank #142,646 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.