Which to use
“SSE” and “STS” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #46,460
- “SSE” frequency rank
- #40,514
- “STS” frequency rank
- 86974
- confusion score
Side-by-Side Comparison
| Feature | SSE | STS |
|---|---|---|
| Definition | Sud-sud-est. | 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 SSE and STS
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. SSE (CCV) and STS (CCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Visual trap between SSE and STS
A purely visual mix-up. SSE (\syd sy.d‿ɛst\) 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 share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 86974, derived from the frequency rank of both members and their visual similarity.
SSE is recorded at frequency rank #46,460, classified as anoun, pronounced \syd sy.d‿ɛst\. 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 86974, this pair ranks #8,919 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of SSE vs STS
Shared letters: s. Private to "SSE": e. Private to "STS": t.
"SSE" · 3 letters · shape CCV · "STS" · 3 letters · shape CCC
Frequently Asked Questions
Is swapping "SSE" for "STS" ever safe?
Which is more common, "SSE" or "STS"?
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 "SSE" 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 #8,919 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "SSE" and "STS" also get mixed up with nearby pairs, the highest-scored neighbour is "SSE vs suu". Nearby pair
Confusion rank #8,919 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.