Which to use
“cos” and “CSU” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #29,065
- “cos” frequency rank
- #1,348
- “CSU” frequency rank
- 30413
- confusion score
Side-by-Side Comparison
| Feature | cos | CSU |
|---|---|---|
| Definition | Kosinus | Kurzwort für Christlich-Soziale Union (in Bayern (e. V.)) |
Letter map: cos vs CSU
Shared letters muted; letters that set cos and CSU apart highlighted. Shared run: 2.
Spelling & dictionary notes on cos vs CSU
cos and CSU are indexed as a confusable German pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 30413, derived from the frequency rank of both members and their visual similarity.
cos is recorded at frequency rank #29,065, classified as anabbrev. CSU is at rank #1,348, tagged as anabbrev, pronounced [tseːʔɛsˈʔuː].
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 30413, this pair ranks #1,748,325 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of cos vs CSU
Shared letters: cs. Private to "cos": o. Private to "CSU": u.
"cos" · 3 letters · shape CVC · "CSU" · 3 letters · shape CCV
Frequently Asked Questions
Can "cos" and "CSU" be used interchangeably?
Which is more common, "cos" or "CSU"?
What to do next
Pair "cos" vs "CSU" is on the table, pick a follow-up below.
- Full dictionary entry for "cos" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "CSU" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,748,325 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "cos" and "CSU" also get mixed up with nearby pairs, the highest-scored neighbour is "CCS vs cos". Nearby pair
Confusion rank #1,748,325 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.