Which to use
“STL” and “STS” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #48,211
- “STL” frequency rank
- #40,514
- “STS” frequency rank
- 88725
- confusion score
Side-by-Side Comparison
| Feature | STL | STS |
|---|---|---|
| Definition | Une des huit séries du baccalauréat technologique, couvrant deux années de préparation avant le baccalauréat. | Navette spatiale américaine ayant effectué 135 vols pour l'agence spatiale américaine (NASA) entre le 12 avril 1981 et juillet 2011. |
Where the eye mixes STL and STS
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between STL and STS
A purely visual mix-up. STL (\ɛs.te.ɛl\) and STS (\ɛs te ɛs\) 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 a single letter - l in “STL” becomes s in “STS”. Our composite confusion score for this pair is 88725, derived from the frequency rank of both members and their visual similarity.
STL is recorded at frequency rank #48,211, classified as anoun, pronounced \ɛs.te.ɛl\. STS is at rank #40,514, tagged as anoun, pronounced \ɛs te ɛs\.
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 88725, this pair ranks #6,609 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of STL vs STS
Shared letters: st. Private to "STL": l. Private to "STS": -.
"STL" · 3 letters · shape CCC · "STS" · 3 letters · shape CCC
Frequently Asked Questions
Can "STL" and "STS" be used interchangeably?
In ordinary French text, does "STL" or "STS" show up more?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "STL" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "STS" - compare definitions side by side with the headword page. Word entry
- This pair ranks #6,609 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "STL" and "STS" also get mixed up with nearby pairs, the highest-scored neighbour is "STL vs suu". Nearby pair
Confusion rank #6,609 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.