R1vsRPWhich spelling fits?

Which to use

“R1” and “RP” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#33,425
“R1” frequency rank
#13,054
“RP” frequency rank
46479
confusion score

Side-by-Side Comparison

Feature R1 RP
Definition Régionale 1 (niveau de championnat en France). Relations publiques.

Letter map: R1 vs RP

Shared letters muted; letters that set R1 and RP apart highlighted. Shared run: 1.

2 ch
R1
2 ch
RP

Pair insight - R1 / RP

R1 and RP are indexed as a confusable French pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by a single letter - 1 in “R1” becomes p in “RP”. Our composite confusion score for this pair is 46479, derived from the frequency rank of both members and their visual similarity.

R1 is recorded at frequency rank #33,425, classified as anoun. RP is at rank #13,054, tagged as anoun, pronounced \ɛʁ.pe\.

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 46479, this pair ranks #194,608 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of R1 vs RP

Shared letters: r. Private to "R1": -. Private to "RP": p.

"R1" · 1 letters · shape C  ·  "RP" · 2 letters · shape CC

Frequently Asked Questions

Is swapping "R1" for "RP" ever safe?
No. They differ by a single letter - 1 in “R1” becomes p in “RP”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "R1" vs "RP" - which ranks higher?
"RP" is the more common of the two: it sits at frequency rank #13,054 in our French list, against #33,425 for "R1". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "R1" and "RP".

  • Full dictionary entry for "R1" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "RP" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #194,608 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "R1" and "RP" also get mixed up with nearby pairs, the highest-scored neighbour is "R1 vs rog". Nearby pair

Confusion rank #194,608 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list