CADvscasedConfusable pair

Quick tell: CAD is a noun, cased is a verb, so they fill different roles in a sentence.

Which to use

“CAD” is a noun and “cased” is a verb - they look or sound alike but fill different roles in a sentence.

#16,858
“CAD” frequency rank
#48,121
“cased” frequency rank
64979
confusion score

Side-by-Side Comparison

Feature CAD cased
Definition Acronym of computer-aided design. simple past and past participle of case

Letter map: CAD vs cased

Shared letters muted; letters that set CAD and cased apart highlighted. Shared run: 3.

3 ch
CAD
5 ch
cased

Grammar separator: CAD vs cased

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: CAD is anoun and casedaverb. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 64979, derived from the frequency rank of both members and their visual similarity.

CAD is recorded at frequency rank #16,858, classified as anoun. cased is at rank #48,121, tagged as averb, pronounced /keɪst/.

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 64979, this pair ranks #75,038 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of CAD vs cased

Shared letters: acd. Private to "CAD": -. Private to "cased": es.

"CAD" · 3 letters · shape CVC  ·  "cased" · 5 letters · shape CVCVC

Known mistypes of this pair

  • casedacsed · caesd · casde · casedd · cassed · ccased · csaed

Frequently Asked Questions

Can "CAD" and "cased" be used interchangeably?
No - they are not even the same part of speech. "CAD" is a noun and "cased" a verb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "CAD" vs "cased" - which ranks higher?
"CAD" is the more common of the two: it sits at frequency rank #16,858 in our English list, against #48,121 for "cased". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "CAD" and "cased".

  • Full dictionary entry for "CAD" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cased" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #75,038 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "CAD" and "cased" 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 #75,038 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list