Definitions

1. noun

a copy of data or a program that is preserved in case the original is lost or damaged

“The company creates a backup of all its data every night.”

2. verb

to make a copy of (data or a program) in case the original is lost or damaged

“Can you backup the files from the external drive?”

3. verb

to provide or obtain a copy of (data or a program)

“You should backup your phone data before resetting the device.”

4. verb

to move (someone or something) to a safe place, especially to avoid danger or harm

“The firefighters had to backup the people from the flooded area.”