algovsapoWhat's the difference?

Quick tell: algo is a pronoun, apo is a noun, so they fill different roles in a sentence.

Which to use

“algo” is a pronoun and “apo” is a noun - they look or sound alike but fill different roles in a sentence.

#74
“algo” frequency rank
#44,553
“apo” frequency rank
44627
confusion score

Side-by-Side Comparison

Feature algo apo
Definition Designa una cantidad pequeña no precisada. Tarea.

Where the eye mixes algo and apo

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
algo
3 ch
apo

Why the eye confuses algo with apo

These two trip readers on the page rather than in the ear: algo is [ˈalɣ̞o] while apo is /aˈpo/. 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 (pronoun vs noun), which is usually the fastest check. Our composite confusion score for this pair is 44627, derived from the frequency rank of both members and their visual similarity.

algo is recorded at frequency rank #74, classified as apron, pronounced [ˈalɣ̞o]. apo is at rank #44,553, tagged as anoun, pronounced /aˈpo/.

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 44627, this pair ranks #135,998 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of algo vs apo

Shared letters: ao. Private to "algo": gl. Private to "apo": p.

"algo" · 4 letters · shape VCCV  ·  "apo" · 3 letters · shape VCV

Known mistypes of this pair

  • algoaglo · alggo · allgo · alog

Frequently Asked Questions

Can "algo" and "apo" be used interchangeably?
No - they are not even the same part of speech. "algo" is a pronoun and "apo" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "algo" or "apo"?
"algo" is the more common of the two: it sits at frequency rank #74 in our Spanish list, against #44,553 for "apo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "algo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "apo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #135,998 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "algo" and "apo" also get mixed up with nearby pairs, the highest-scored neighbour is "apis vs apo". 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 #135,998 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