Which to use
“REM” is a noun and “rr” is a character - they look or sound alike but fill different roles in a sentence.
- #35,225
- “REM” frequency rank
- #20,813
- “rr” frequency rank
- 56038
- confusion score
Side-by-Side Comparison
| Feature | REM | rr |
|---|---|---|
| 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. | Vigésimo quinta letra del achegety o alfabeto guaraní. |
Where the eye mixes REM and rr
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: REM vs rr
These two trip readers on the page rather than in the ear: REM is [ˈrẽm] while rr is /ˈre/. 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 character), which is usually the fastest check. Our composite confusion score for this pair is 56038, 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]. rr is at rank #20,813, tagged as acharacter, pronounced /ˈre/.
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 56038, this pair ranks #76,294 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of REM vs rr
Shared letters: r. Private to "REM": em. Private to "rr": -.
"REM" · 3 letters · shape CVC · "rr" · 2 letters · shape CC
Frequently Asked Questions
Can "REM" and "rr" be used interchangeably?
Which is more common, "REM" or "rr"?
Useful next steps
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 "rr" - compare definitions side by side with the headword page. Word entry
- This pair ranks #76,294 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "REM" and "rr" also get mixed up with nearby pairs, the highest-scored neighbour is "REM vs rema". Nearby pair
Confusion rank #76,294 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.