pianosvspillosWhich spelling fits?

Quick tell: pianos is a noun, pillos is an adjective, so they fill different roles in a sentence.

Which to use

“pianos” is a noun and “pillos” is an adjective - they look or sound alike but fill different roles in a sentence.

#37,780
“pianos” frequency rank
#47,324
“pillos” frequency rank
85104
confusion score

Side-by-Side Comparison

Feature pianos pillos
Definition Forma del plural de piano. Forma del plural de pillo₁.

Where the eye mixes pianos and pillos

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. pianos (CVVCVC) and pillos (CVCCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
pianos
6 ch
pillos

Visual trap between pianos and pillos

These two trip readers on the page rather than in the ear: pianos is [ˈpjanos] while pillos is [ˈpiʝos]. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 85104, derived from the frequency rank of both members and their visual similarity.

pianos is recorded at frequency rank #37,780, classified as anoun, pronounced [ˈpjanos]. pillos is at rank #47,324, tagged as anadj, pronounced [ˈpiʝos].

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 85104, this pair ranks #6,410 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of pianos vs pillos

Shared letters: iops. Private to "pianos": an. Private to "pillos": l.

"pianos" · 6 letters · shape CVVCVC  ·  "pillos" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • pianosipanos · painos · piannos · pianoss · pianso · piaons · pinaos · ppianos
  • pillosipllos · pilloss · pillso · pilols · pilos · plilos · ppillos

Frequently Asked Questions

Is swapping "pianos" for "pillos" ever safe?
No - they are not even the same part of speech. "pianos" is a noun and "pillos" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "pianos" or "pillos"?
"pianos" is the more common of the two: it sits at frequency rank #37,780 in our Spanish list, against #47,324 for "pillos". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "pianos" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "pillos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #6,410 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "pianos" and "pillos" also get mixed up with nearby pairs, the highest-scored neighbour is "pillen vs pillos". 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 #6,410 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