corvscosWhat's the difference?

Quick tell: cor is a noun, cos is an abbrev, so they fill different roles in a sentence.

Which to use

“cor” is a noun and “cos” is an abbrev - they look or sound alike but fill different roles in a sentence.

#41,731
“cor” frequency rank
#29,065
“cos” frequency rank
70796
confusion score

Side-by-Side Comparison

Feature cor cos
Definition das Herz Kosinus

Letter map: cor vs cos

Shared letters muted; letters that set cor and cos apart highlighted. Shared run: 2.

3 ch
cor
3 ch
cos

Grammar separator: cor vs cos

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cor is anoun and cosanabbrev. On the page they differ by a single letter - r in “cor” becomes s in “cos”. Our composite confusion score for this pair is 70796, derived from the frequency rank of both members and their visual similarity.

cor is recorded at frequency rank #41,731, classified as anoun, pronounced […]. cos is at rank #29,065, tagged as anabbrev.

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 70796, this pair ranks #435,523 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of cor vs cos

Shared letters: co. Private to "cor": r. Private to "cos": s.

"cor" · 3 letters · shape CVC  ·  "cos" · 3 letters · shape CVC

Frequently Asked Questions

Do "cor" and "cos" mean the same thing in a sentence?
No - they are not even the same part of speech. "cor" is a noun and "cos" an abbrev, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "cor" or "cos"?
"cos" is the more common of the two: it sits at frequency rank #29,065 in our German list, against #41,731 for "cor". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "cor" and "cos". Here's where to go from here.

  • Full dictionary entry for "cor" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #435,523 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "cor" and "cos" also get mixed up with nearby pairs, the highest-scored neighbour is "cor vs puzzles". Nearby pair

Confusion rank #435,523 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list