rojovsruloTell them apart

Quick tell: rojo is a adjective, rulo is a noun, so they fill different roles in a sentence.

Which to use

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

#1,273
“rojo” frequency rank
#46,196
“rulo” frequency rank
47469
confusion score

Side-by-Side Comparison

Feature rojo rulo
Definition Del color percibido por el ojo humano de la luz con una longitud de onda entre 630 nanómetros y 760 nanómetros. Convencionalmente se considera uno de los siete del arcoíris o espectro solar. :* Color: . Bola gruesa u otra cosa redonda que rueda fácilmente.

Where the eye mixes rojo and rulo

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

4 ch
rojo
4 ch
rulo

Visual trap between rojo and rulo

These two trip readers on the page rather than in the ear: rojo is [ˈroxo] while rulo is [ˈrulo]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 47469, derived from the frequency rank of both members and their visual similarity.

rojo is recorded at frequency rank #1,273, classified as anadj, pronounced [ˈroxo]. rulo is at rank #46,196, tagged as anoun, pronounced [ˈrulo].

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 47469, this pair ranks #119,882 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of rojo vs rulo

Shared letters: or. Private to "rojo": j. Private to "rulo": lu.

"rojo" · 4 letters · shape CVCV  ·  "rulo" · 4 letters · shape CVCV

Known mistypes of this pair

  • rojoorjo · rjoo · rojjo · rooj · rrojo
  • rulorluo · rrulo · rullo · ruol · urlo

Frequently Asked Questions

Do "rojo" and "rulo" mean the same thing in a sentence?
No - they are not even the same part of speech. "rojo" is an adjective and "rulo" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "rojo" or "rulo" show up more?
"rojo" is the more common of the two: it sits at frequency rank #1,273 in our Spanish list, against #46,196 for "rulo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "rojo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "rulo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #119,882 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "rojo" and "rulo" also get mixed up with nearby pairs, the highest-scored neighbour is "rajo vs rulo". 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 #119,882 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