English UsageComparison guide
Occurrence vs. Occurence
The standard spelling is “occurrence,” with double c and double r. “Occurence” is a common misspelling and should normally be corrected in edited English.
Use “occurrence,” with double c and double r. “Occurence” is a misspelling.
Key details
Confusion Familyspelling error
Rule Familystandard spelling
Termsoccurrence, occurence
Further guidance
Memory Boundary
The spelling preserves double c from “occur” and also uses double r before “-ence”: occurrence.
Standard Form
Cambridge records the headword “occurrence.”
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- Occurrence — Cambridge Dictionary (opens in a new tab)Cambridge University Press · Dictionary evidence for the standard spelling occurrence.