Reopen
Verb · Slang & Abbreviations
Definitions
To mark a previously closed issue or ticket as active again because the problem persists or has returned. In engineering slang, reopening something is often a small act loaded with emotional history.
In plain English: To make a closed issue active again because it is not actually resolved.
Example: "Support had to reopen the issue after the rollback restored service but left the same broken export path waiting to fail for the next customer."