备份 (bèi fèn): Back-up (Noun, Verb) — Meaning & Stroke Order

Before implementing the system upgrade, be sure to perform a complete backup of the existing database.

Didn't you make any backup for this crucially important research report?

Remember to back up the photos on your phone in case they get lost.

I not only backed up the files to a hard drive but also synchronized a copy to cloud storage.