Definitions

1. noun

A Unix permission mode that allows a set-user-ID program to run with the privileges of the owner of the file it was linked from.

“The setuid program allowed the user to access the file system with elevated permissions.”

2. verb

To change the Unix permission mode of a program to set-user-ID, allowing it to run with elevated privileges.

“The system administrator setuid the program to enable it to access the file system.”