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. |
Where the spellings diverge
Shared letters are muted; the letters that actually set CDU and cup apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
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
Frequency comparison
Frequently Asked Questions
Can "CDU" and "cup" be used interchangeably?
Which is more common, "CDU" or "cup"?
Remembering CDU vs cup
The fastest way to pick the right one every time.
- Check the role first: if you need a name, it's “CDU”; for a noun, it's “cup”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “CDU” entry
- Browse more pairs most likely to be confused. Most confusable