Which to use
“SDIS” is a noun and “surs” is an adjective - they look or sound alike but fill different roles in a sentence.
- #44,180
- “SDIS” frequency rank
- #45,900
- “surs” frequency rank
- 90080
- confusion score
Side-by-Side Comparison
| Feature | SDIS | surs |
|---|---|---|
| Definition | Service départemental d’incendie et de secours, chargé dans un département d’analyser les risques et d’organiser les services de secours. | Masculin pluriel de l’adjectif sur. |
Letter map: SDIS vs surs
Shared letters muted; letters that set SDIS and surs apart highlighted. Shared run: 2. SDIS (CCVC) and surs (CVCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Role in the sentence - SDIS and surs
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: SDIS is anoun and sursanadjective. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 90080, derived from the frequency rank of both members and their visual similarity.
SDIS is recorded at frequency rank #44,180, classified as anoun. surs is at rank #45,900, tagged as anadj, pronounced \syʁ\.
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 90080, this pair ranks #5,175 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of SDIS vs surs
Shared letters: s. Private to "SDIS": di. Private to "surs": ru.
"SDIS" · 4 letters · shape CCVC · "surs" · 4 letters · shape CVCC
Known mistypes of this pair
Frequently Asked Questions
Do "SDIS" and "surs" mean the same thing in a sentence?
Which is more common, "SDIS" or "surs"?
What to do next
Pair "SDIS" vs "surs" is on the table, pick a follow-up below.
- Full dictionary entry for "SDIS" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "surs" - compare definitions side by side with the headword page. Word entry
- This pair ranks #5,175 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "SDIS" and "surs" also get mixed up with nearby pairs, the highest-scored neighbour is "surs vs suu". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #5,175 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.