Which to use
“CDU” is a name and “cup” is a noun - they look or sound alike but fill different roles in a sentence.
- #37,372
- “CDU” frequency rank
- #805
- “cup” frequency rank
- 38177
- confusion score
Side-by-Side Comparison
| Feature | CDU | cup |
|---|---|---|
| Definition | Initialism of Christian Democratic Union (of Germany) (“Christlich Demokratische Union”) (a major mainstream German political party) | A concave vessel for drinking, usually made of opaque material (as opposed to a glass) and with a handle. |
Letter map: CDU vs cup
Shared letters muted; letters that set CDU and cup apart highlighted. Shared run: 2. CDU (CCV) and cup (CVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Grammar separator: CDU vs cup
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: CDU is aname and cupanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 38177, derived from the frequency rank of both members and their visual similarity.
CDU is recorded at frequency rank #37,372, classified as aname. cup is at rank #805, tagged as anoun, pronounced /kʌp/.
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 38177, this pair ranks #288,175 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of CDU vs cup
Shared letters: cu. Private to "CDU": d. Private to "cup": p.
"CDU" · 3 letters · shape CCV · "cup" · 3 letters · shape CVC
Frequently Asked Questions
Can "CDU" and "cup" be used interchangeably?
In ordinary English text, does "CDU" or "cup" show up more?
What to do next
You've compared "CDU" and "cup". Here's where to go from here.
- Full dictionary entry for "CDU" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cup" - compare definitions side by side with the headword page. Word entry
- This pair ranks #288,175 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "CDU" and "cup" also get mixed up with nearby pairs, the highest-scored neighbour is "CDU vs CGT". Nearby pair
Confusion rank #288,175 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.