Which to use
“scab” and “spa” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #37,672
- “scab” frequency rank
- #7,611
- “spa” frequency rank
- 45283
- confusion score
Side-by-Side Comparison
| Feature | scab | spa |
|---|---|---|
| Definition | An incrustation over a sore, wound, vesicle, or pustule, formed during healing. | A health resort near a mineral spring or hot spring. |
Where the eye mixes scab and spa
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between scab and spa
A purely visual mix-up. scab (/skæb/) and spa (/ˈspɑː/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 45283, derived from the frequency rank of both members and their visual similarity.
scab is recorded at frequency rank #37,672, classified as anoun, pronounced /skæb/. spa is at rank #7,611, tagged as anoun, pronounced /ˈspɑː/.
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 45283, this pair ranks #222,683 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of scab vs spa
Shared letters: as. Private to "scab": bc. Private to "spa": p.
"scab" · 4 letters · shape CCVC · "spa" · 3 letters · shape CCV
Known mistypes of this pair
- scab ← csab · sacb · scabb · scba · sccab · sscab
Frequently Asked Questions
Can "scab" and "spa" be used interchangeably?
In ordinary English text, does "scab" or "spa" show up more?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "scab" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "spa" - compare definitions side by side with the headword page. Word entry
- This pair ranks #222,683 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "scab" and "spa" also get mixed up with nearby pairs, the highest-scored neighbour is "scab vs soca". 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 #222,683 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.