R1vsrizTell them apart

Which to use

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

#33,425
“R1” frequency rank
#4,181
“riz” frequency rank
37606
confusion score

Side-by-Side Comparison

Feature R1 riz
Definition Régionale 1 (niveau de championnat en France). Dénomination usuelle des plantes du genre Oryza de la famille des Poacées, céréale cultivée dans les terres humides et marécageuses des pays chauds.

Letter map: R1 vs riz

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

2 ch
R1
3 ch
riz

Pair insight - R1 / riz

R1 and riz 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 1 letter(s) in length. Our composite confusion score for this pair is 37606, derived from the frequency rank of both members and their visual similarity.

R1 is recorded at frequency rank #33,425, classified as anoun. riz is at rank #4,181, tagged as anoun, pronounced \ʁi\.

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 37606, this pair ranks #261,307 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of R1 vs riz

Shared letters: r. Private to "R1": -. Private to "riz": iz.

"R1" · 1 letters · shape C  ·  "riz" · 3 letters · shape CVC

Frequently Asked Questions

Do "R1" and "riz" mean the same thing in a sentence?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary French text, does "R1" or "riz" show up more?
"riz" is the more common of the two: it sits at frequency rank #4,181 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.

After this comparison

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

  • Full dictionary entry for "R1" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "riz" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #261,307 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "R1" and "riz" also get mixed up with nearby pairs, the highest-scored neighbour is "R1 vs rog". Nearby pair

Confusion rank #261,307 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