piojovspocoConfusable pair

Quick tell: piojo is a noun, poco is an adverb, so they fill different roles in a sentence.

Which to use

“piojo” is a noun and “poco” is an adverb - they look or sound alike but fill different roles in a sentence.

#32,804
“piojo” frequency rank
#115
“poco” frequency rank
32919
confusion score

Side-by-Side Comparison

Feature piojo poco
Definition (orden Phthiraptera) Cualquiera de más de 3000 especies de insectos ápteros adaptados para parasitar virtualmente todas las especies de mamíferos y aves, cuya sangre consumen, alojándose en el cabello del cuerpo y la cabeza. Su cuerpo está diseñado para este hábitat, con el primer par de patas modificado para permitir la sujeción al cabello. Son extremadamente fértiles, depositando las hembras hasta unos 200 huevos en los 30 días de su vida adulta. Tienen el cuerpo aplanado y de color oscuro o pardoamarillento. La infestación con piojos se denomina pediculosis, y provoca comezón, además de funcionar como vector para otras enfermedades —en particular el tifus— y provocar anemia en casos agudos. En menor cantidad de lo que se hubiera esperado, en intensidad baja, o en menor grado.

Where the eye mixes piojo and poco

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
piojo
4 ch
poco

Why the eye confuses piojo with poco

These two trip readers on the page rather than in the ear: piojo is [ˈpjoxo] while poco is [ˈpoko]. 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 (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 32919, derived from the frequency rank of both members and their visual similarity.

piojo is recorded at frequency rank #32,804, classified as anoun, pronounced [ˈpjoxo]. poco is at rank #115, tagged as anadv, pronounced [ˈpoko].

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 32919, this pair ranks #199,501 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of piojo vs poco

Shared letters: op. Private to "piojo": ij. Private to "poco": c.

"piojo" · 5 letters · shape CVVCV  ·  "poco" · 4 letters · shape CVCV

Known mistypes of this pair

  • piojoipojo · pijoo · piojjo · piooj · poijo · ppiojo
  • pocoopco · pcoo · pocco · pooc · ppoco

Frequently Asked Questions

Can "piojo" and "poco" be used interchangeably?
No - they are not even the same part of speech. "piojo" is a noun and "poco" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "piojo" or "poco"?
"poco" is the more common of the two: it sits at frequency rank #115 in our Spanish list, against #32,804 for "piojo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "piojo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "poco" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #199,501 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "piojo" and "poco" also get mixed up with nearby pairs, the highest-scored neighbour is "piojo vs probo". 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 #199,501 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