pezvspooWhat's the difference?

Which to use

“pez” and “poo” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#5,028
“pez” frequency rank
#43,780
“poo” frequency rank
48808
confusion score

Side-by-Side Comparison

Feature pez poo
Definition Cualquiera de unas 30 000 especies de animales vertebrados, caracterizados por ser los únicos adaptados a respirar agua durante todo su ciclo vital. Forman un grupo sin rigor taxonómico que comprende varios grupos evolutivos diferentes, que sólo tienen en común su adaptación al medio acuático. Polvo.

Where the eye mixes pez and poo

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
pez
3 ch
poo

Look-alike desk: pez vs poo

A purely visual mix-up. pez ([ˈpes]) and poo ([ˈpɔ.o]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 48808, derived from the frequency rank of both members and their visual similarity.

pez is recorded at frequency rank #5,028, classified as anoun, pronounced [ˈpes]. poo is at rank #43,780, tagged as anoun, pronounced [ˈpɔ.o].

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 48808, this pair ranks #112,406 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of pez vs poo

Shared letters: p. Private to "pez": ez. Private to "poo": o.

"pez" · 3 letters · shape CVC  ·  "poo" · 3 letters · shape CVV

Frequently Asked Questions

Do "pez" and "poo" mean the same thing in a sentence?
No. They are said differently ([ˈpes] versus [ˈpɔ.o]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "pez" or "poo" show up more?
"pez" is the more common of the two: it sits at frequency rank #5,028 in our Spanish list, against #43,780 for "poo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "pez" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "poo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #112,406 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "pez" and "poo" also get mixed up with nearby pairs, the highest-scored neighbour is "poo vs probo". Nearby pair

Confusion rank #112,406 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