Which to use
“coast” and “cobalt” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #22,209
- “coast” frequency rank
- #22,520
- “cobalt” frequency rank
- 44729
- confusion score
Side-by-Side Comparison
| Feature | coast | cobalt |
|---|---|---|
| Definition | Bord, rive, côte, rivage, littoral. | Élément chimique de symbole chimique Co et de numéro atomique 27. |
Where the eye mixes coast and cobalt
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. coast runs 5 letters (CVVCC) against cobalt's 6 (CVCVCC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses coast with cobalt
A purely visual mix-up. coast (\kəʊst\) and cobalt (\kɔ.balt\) 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 44729, derived from the frequency rank of both members and their visual similarity.
coast is recorded at frequency rank #22,209, classified as anoun, pronounced \kəʊst\. cobalt is at rank #22,520, tagged as anoun, pronounced \kɔ.balt\.
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 44729, this pair ranks #208,250 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of coast vs cobalt
Shared letters: acot. Private to "coast": s. Private to "cobalt": bl.
"coast" · 5 letters · shape CVVCC · "cobalt" · 6 letters · shape CVCVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "coast" for "cobalt" ever safe?
Frequency check: "coast" vs "cobalt" - which ranks higher?
After this comparison
Eye-level mix-up between "coast" and "cobalt" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "coast" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cobalt" - compare definitions side by side with the headword page. Word entry
- This pair ranks #208,250 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "coast" and "cobalt" also get mixed up with nearby pairs, the highest-scored neighbour is "CCAS vs coast". 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 #208,250 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.