expunging (noun)

1. The act of expunging sins through confession is an important practice in many religions.

2. The artist skillfully incorporated the technique of expunging lines to create a more dynamic composition in the painting.

3. In the science fiction novel, the main character discovers a secret device capable of expunging memories.

4. During the Salem Witch Trials, many accused individuals were falsely convicted and their names were expunged from the official records years later.