eraser
n. A1 Beginner US //iˈɹeɪsɝ// UK //ɪɹˈeɪzɐ// eras·er
n. a tool used to remove marks from paper, like a pencil mark. In computing, it can also be a program or tool that deletes files or data.
n. a tool used to remove marks from a surface, such as a pencil mark from paper. In a computing context, it refers to a utility or software function designed to delete data or files from a system.
I need a new eraser for my pencil.
The system administrator used a secure eraser to delete the sensitive files from the hard drive.
While a physical eraser can only remove the graphite from the surface, a digital eraser must overwrite the data to prevent recovery by forensic tools.
From erase + -er.