popovspropioWhich spelling fits?

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

Which to use

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

#46,132
“popo” frequency rank
#506
“propio” frequency rank
46638
confusion score

Side-by-Side Comparison

Feature popo propio
Definition Desecho maloliente de la comida ingerida, que se expulsa por vía anal. Relativo o perteneciente a alguien o a algo, en particular si se tiene la posesión, facultad, derechos o libertad exclusivos para disponer o hacer uso de ello.

Where the eye mixes popo and propio

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. popo runs 4 letters (CVCV) against propio's 6 (CCVCVV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
popo
6 ch
propio

Look-alike desk: popo vs propio

These two trip readers on the page rather than in the ear: popo is [ˈpopo] while propio is [ˈpɾopjo]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 46638, derived from the frequency rank of both members and their visual similarity.

popo is recorded at frequency rank #46,132, classified as anoun, pronounced [ˈpopo]. propio is at rank #506, tagged as anadj, pronounced [ˈpɾopjo].

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 46638, this pair ranks #124,608 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of popo vs propio

Shared letters: op. Private to "popo": -. Private to "propio": ir.

"popo" · 4 letters · shape CVCV  ·  "propio" · 6 letters · shape CCVCVV

Known mistypes of this pair

  • popo ← oppo · poop · poppo · ppoo · ppopo
  • propio ← porpio · ppropio · proipo · propoi · proppio · prpoio · prropio · rpopio

Frequently Asked Questions

Can "popo" and "propio" be used interchangeably?
No - they are not even the same part of speech. "popo" is a noun and "propio" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "popo" or "propio" show up more?
"propio" is the more common of the two: it sits at frequency rank #506 in our Spanish list, against #46,132 for "popo". 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 "popo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "propio" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #124,608 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "popo" and "propio" also get mixed up with nearby pairs, the highest-scored neighbour is "popo 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 #124,608 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