Which to use
“sais” and “spas” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #44,467
- “sais” frequency rank
- #35,526
- “spas” frequency rank
- 79993
- confusion score
Side-by-Side Comparison
| Feature | sais | spas |
|---|---|---|
| Definition | A groom, or servant with responsibility for the horses. | plural of spa |
Where the eye mixes sais and spas
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. sais (CVVC) and spas (CCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses sais with spas
A purely visual mix-up. sais (/saɪs/) and spas (/spɑːz/) 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 79993, derived from the frequency rank of both members and their visual similarity.
sais is recorded at frequency rank #44,467, classified as anoun, pronounced /saɪs/. spas is at rank #35,526, tagged as anoun, pronounced /spɑːz/.
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 79993, this pair ranks #20,812 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of sais vs spas
Shared letters: as. Private to "sais": i. Private to "spas": p.
"sais" · 4 letters · shape CVVC · "spas" · 4 letters · shape CCVC
Known mistypes of this pair
Frequently Asked Questions
Can "sais" and "spas" be used interchangeably?
Frequency check: "sais" vs "spas" - which ranks higher?
After this comparison
Eye-level mix-up between "sais" and "spas" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "sais" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "spas" - compare definitions side by side with the headword page. Word entry
- This pair ranks #20,812 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "sais" and "spas" also get mixed up with nearby pairs, the highest-scored neighbour is "sais vs suds". 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 #20,812 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.