What is difference between Regression and Restesting?

Answer Posted / raj

Retesting :running a test morethan once
Regression testing:It is a test used to verify that already
tested software is still functioning correctly or not and
not affected by the test object and the environment.The
main aim of regression testing is to check whether it has
any unexpected side effects after fixing a bug.

what we can conclude is if regression testing is a super-
set then retesting is a subset

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