RSIvsRTTell them apart

Which to use

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

#25,116
“RSI” frequency rank
#10,937
“RT” frequency rank
36053
confusion score

Side-by-Side Comparison

Feature RSI RT
Definition Douleurs dans les nerfs, les tendons et les muscles des membres supérieurs dues principalement à une mauvaise posture au travail et/ou à un mouvement répétitif. Rediffusion d’un tweet effectué par un autre compte Twitter.

Where the eye mixes RSI and RT

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
RSI
2 ch
RT

Why the eye confuses RSI with RT

A purely visual mix-up. RSI (\ɛ.ʁɛ.si\) and RT (\ɛʁ.te\) 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 36053, derived from the frequency rank of both members and their visual similarity.

RSI is recorded at frequency rank #25,116, classified as anoun, pronounced \ɛ.ʁɛ.si\. RT is at rank #10,937, tagged as anoun, pronounced \ɛʁ.te\.

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 36053, this pair ranks #272,322 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of RSI vs RT

Shared letters: r. Private to "RSI": is. Private to "RT": t.

"RSI" · 3 letters · shape CCV  ·  "RT" · 2 letters · shape CC

Frequently Asked Questions

Can "RSI" and "RT" be used interchangeably?
No. They are said differently (\ɛ.ʁɛ.si\ versus \ɛʁ.te\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "RSI" vs "RT" - which ranks higher?
"RT" is the more common of the two: it sits at frequency rank #10,937 in our French list, against #25,116 for "RSI". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "RSI" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "RT" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #272,322 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "RSI" and "RT" also get mixed up with nearby pairs, the highest-scored neighbour is "Reis vs RSI". Nearby pair

Confusion rank #272,322 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