robovsrooTell them apart

Quick tell: robo is a noun, roo is a verb, so they fill different roles in a sentence.

Which to use

“robo” is a noun and “roo” is a verb - they look or sound alike but fill different roles in a sentence.

#2,424
“robo” frequency rank
#13,787
“roo” frequency rank
16211
confusion score

Side-by-Side Comparison

Feature robo roo
Definition Efecto y acto de robar. Primera persona del singular (yo) del presente de indicativo de roer.

Where the eye mixes robo and roo

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

4 ch
robo
3 ch
roo

Why the eye confuses robo with roo

These two trip readers on the page rather than in the ear: robo is [ˈroβ̞o] while roo is [ˈroo]. 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 verb), which is usually the fastest check. Our composite confusion score for this pair is 16211, derived from the frequency rank of both members and their visual similarity.

robo is recorded at frequency rank #2,424, classified as anoun, pronounced [ˈroβ̞o]. roo is at rank #13,787, tagged as averb, pronounced [ˈroo].

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 16211, this pair ranks #277,069 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of robo vs roo

Shared letters: or. Private to "robo": b. Private to "roo": -.

"robo" · 4 letters · shape CVCV  ·  "roo" · 3 letters · shape CVV

Known mistypes of this pair

  • roboorbo · rboo · robbo · roob · rovo · rrobo

Frequently Asked Questions

Is swapping "robo" for "roo" ever safe?
No - they are not even the same part of speech. "robo" is a noun and "roo" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "robo" or "roo"?
"robo" is the more common of the two: it sits at frequency rank #2,424 in our Spanish list, against #13,787 for "roo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "robo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "roo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #277,069 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "robo" and "roo" also get mixed up with nearby pairs, the highest-scored neighbour is "rajo vs roo". 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 #277,069 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