What is difference between retesting and regression testing?

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Retesting is testing the same functionality again after fixing the defects. Regression testing is testing the unchanged functionality to ensure that it still works after changes.

Retesting is done to ensure that the defects reported in the previous cycle have been fixed.
Regression testing is done to ensure that the changes made to the software have not affected the existing functionality.
Retesting is done on the same test cases that failed previously.
Regression testing is done on the test cases that passed previously.
Retesting is a subset of regression testing.
Regression testing is a comprehensive testing approach.
Example of retesting: Testing the login functionality after fixing the defects reported in the previous cycle.
Example of regression testing: Testing the search functionality after adding a new feature to the software.

What is difference between retesting and regression testing?

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