Sign out Definition 1 of 3Pro Tip 1/3Physical Spaces Used for actual locations such as offices or events where attendance is tracked. Remember to sign out at the security desk. Pro Tip 2/3Safety Protocol In some jobs, signing out is crucial for safety to confirm that no one is left inside. Fire drills require everyone to sign out for a headcount. Pro Tip 3/3Contract Conclusion May indicate the end of a service agreement or session in a formal setting. When you finish your shift, don't forget to sign out.