Which to use
“sci” is a noun and “spi” is an adjective - they look or sound alike but fill different roles in a sentence.
- #17,003
- “sci” frequency rank
- #49,369
- “spi” frequency rank
- 66372
- confusion score
Side-by-Side Comparison
| Feature | sci | spi |
|---|---|---|
| Definition | Ski, patin très long, légèrement recourbé en avant, qui sert à glisser sur la neige. | Spirituel (au sens religieux). |
Where the eye mixes sci and spi
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses sci with spi
These two trip readers on the page rather than in the ear: sci is \ˈʃi\ while spi is \spi\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - c in “sci” becomes p in “spi”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 66372, derived from the frequency rank of both members and their visual similarity.
sci is recorded at frequency rank #17,003, classified as anoun, pronounced \ˈʃi\. spi is at rank #49,369, tagged as anadj, pronounced \spi\.
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 66372, this pair ranks #68,117 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of sci vs spi
Shared letters: is. Private to "sci": c. Private to "spi": p.
"sci" · 3 letters · shape CCV · "spi" · 3 letters · shape CCV
Frequently Asked Questions
Is swapping "sci" for "spi" ever safe?
Frequency check: "sci" vs "spi" - which ranks higher?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "sci" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "spi" - compare definitions side by side with the headword page. Word entry
- This pair ranks #68,117 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "sci" and "spi" also get mixed up with nearby pairs, the highest-scored neighbour is "spi vs suu". Nearby pair
Confusion rank #68,117 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.