REMvsreosTell them apart

Which to use

“REM” and “reos” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#35,225
“REM” frequency rank
#23,928
“reos” frequency rank
59153
confusion score

Side-by-Side Comparison

Feature REM reos
Definition Fase del sueño durante la que suceden los ensueños más intensos. Durante esta fase, los ojos se mueven rápidamente y la actividad de las neuronas del cerebro se asemeja a la de cuando se está despierto. Forma del plural de reo.

Where the eye mixes REM and reos

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. REM runs 3 letters (CVC) against reos's 4 (CVVC) - the length gap alone is often enough to separate them once you know to check it.

3 ch
REM
4 ch
reos

Why the eye confuses REM with reos

A purely visual mix-up. REM ([ˈrẽm]) and reos ([ˈreos]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 59153, derived from the frequency rank of both members and their visual similarity.

REM is recorded at frequency rank #35,225, classified as anoun, pronounced [ˈrẽm]. reos is at rank #23,928, tagged as anoun, pronounced [ˈreos].

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 59153, this pair ranks #63,727 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of REM vs reos

Shared letters: er. Private to "REM": m. Private to "reos": os.

"REM" · 3 letters · shape CVC  ·  "reos" · 4 letters · shape CVVC

Known mistypes of this pair

  • reos ← reoss · reso · roes · rreos

Frequently Asked Questions

Do "REM" and "reos" mean the same thing in a sentence?
No. They are said differently ([ˈrẽm] versus [ˈreos]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "REM" vs "reos" - which ranks higher?
"reos" is the more common of the two: it sits at frequency rank #23,928 in our Spanish list, against #35,225 for "REM". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "REM" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "reos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #63,727 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "REM" and "reos" also get mixed up with nearby pairs, the highest-scored neighbour is "REM vs rema". 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 #63,727 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