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 spellings diverge
Shared letters are muted; the letters that actually set REM and rr apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
REM and rr form a confusable pair in the Spanish index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. 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.
Frequency comparison
Frequently Asked Questions
Can "REM" and "rr" be used interchangeably?
Remembering REM vs rr
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “REM”; for a character, it's “rr”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “REM” entry
- Browse more pairs most likely to be confused. Most confusable