quivsquoWhat's the difference?

Quick tell: qui is a pronoun, quo is a verb, so they fill different roles in a sentence.

Which to use

“qui” is a pronoun and “quo” is a verb - they look or sound alike but fill different roles in a sentence.

#12,907
“qui” frequency rank
#10,560
“quo” frequency rank
23467
confusion score

Side-by-Side Comparison

Feature qui quo
Definition Quién. Dijo.

Letter map: qui vs quo

Shared letters muted; letters that set qui and quo apart highlighted. Shared run: 2. qui and quo follow the identical consonant-vowel pattern (CVV). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
qui
3 ch
quo

Grammar separator: qui vs quo

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: qui is apronoun and quoaverb. On the page they differ by a single letter - i in “qui” becomes o in “quo”. Our composite confusion score for this pair is 23467, derived from the frequency rank of both members and their visual similarity.

qui is recorded at frequency rank #12,907, classified as apron, pronounced [ˈki]. quo is at rank #10,560, tagged as averb.

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 23467, this pair ranks #245,678 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of qui vs quo

Shared letters: qu. Private to "qui": i. Private to "quo": o.

"qui" · 3 letters · shape CVV  ·  "quo" · 3 letters · shape CVV

Frequently Asked Questions

Can "qui" and "quo" be used interchangeably?
No - they are not even the same part of speech. "qui" is a pronoun and "quo" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "qui" or "quo"?
"quo" is the more common of the two: it sits at frequency rank #10,560 in our Spanish list, against #12,907 for "qui". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "qui" and "quo".

  • Full dictionary entry for "qui" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "quo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #245,678 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "qui" and "quo" also get mixed up with nearby pairs, the highest-scored neighbour is "Qom vs qui". Nearby pair

Confusion rank #245,678 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