Which to use
“sem” is a preposition and “SSR” is a noun - they look or sound alike but fill different roles in a sentence.
- #19,985
- “sem” frequency rank
- #49,370
- “SSR” frequency rank
- 69355
- confusion score
Side-by-Side Comparison
| Feature | sem | SSR |
|---|---|---|
| Definition | Sans. | Sexe sans risque, safe sex. |
Where the eye mixes sem and SSR
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. sem (CVC) and SSR (CCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: sem vs SSR
These two trip readers on the page rather than in the ear: sem is \sɐ̃j\ while SSR is \ɛs.ɛs.ɛʁ\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (preposition vs noun), which is usually the fastest check. Our composite confusion score for this pair is 69355, derived from the frequency rank of both members and their visual similarity.
sem is recorded at frequency rank #19,985, classified as aprep, pronounced \sɐ̃j\. SSR is at rank #49,370, tagged as anoun, pronounced \ɛs.ɛs.ɛʁ\.
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 69355, this pair ranks #55,451 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of sem vs SSR
Shared letters: s. Private to "sem": em. Private to "SSR": r.
"sem" · 3 letters · shape CVC · "SSR" · 3 letters · shape CCC
Frequently Asked Questions
Do "sem" and "SSR" mean the same thing in a sentence?
In ordinary French text, does "sem" or "SSR" show up more?
Useful next steps
Eye-level mix-up between "sem" and "SSR" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "sem" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "SSR" - compare definitions side by side with the headword page. Word entry
- This pair ranks #55,451 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "sem" and "SSR" also get mixed up with nearby pairs, the highest-scored neighbour is "SSR vs suu". Nearby pair
Confusion rank #55,451 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.