Which to use
“cased” is a verb and “caster” is a noun - they look or sound alike but fill different roles in a sentence.
- #48,121
- “cased” frequency rank
- #25,312
- “caster” frequency rank
- 73433
- confusion score
Side-by-Side Comparison
| Feature | cased | caster |
|---|---|---|
| Definition | simple past and past participle of case | Someone or something that casts. |
Where the eye mixes cased and caster
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. cased runs 5 letters (CVCVC) against caster's 6 (CVCCVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses cased with caster
These two trip readers on the page rather than in the ear: cased is /keɪst/ while caster is /ˈkɑːstə(ɹ)/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 73433, derived from the frequency rank of both members and their visual similarity.
cased is recorded at frequency rank #48,121, classified as averb, pronounced /keɪst/. caster is at rank #25,312, tagged as anoun, pronounced /ˈkɑːstə(ɹ)/.
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 73433, this pair ranks #39,642 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of cased vs caster
Shared letters: aces. Private to "cased": d. Private to "caster": rt.
"cased" · 5 letters · shape CVCVC · "caster" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "cased" and "caster" mean the same thing in a sentence?
Which is more common, "cased" or "caster"?
What to do next
Eye-level mix-up between "cased" and "caster" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "cased" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "caster" - compare definitions side by side with the headword page. Word entry
- This pair ranks #39,642 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "cased" and "caster" also get mixed up with nearby pairs, the highest-scored neighbour is "cased vs clasped". 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 #39,642 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.