Backup: meaning, definitions and examples

Apart from data, 'backup' can also be used to describe support or reinforcement in various scenarios.

• Call for backup if you need help
• The police sent backup officers to the scene

Typically used when making a duplicate of documents, files or objects, without the implication of having a secondary, safety purpose.

• Make a copy of this report for your records
• I accidentally deleted the file, but luckily I had made a copy

Often used for an exact replica of something. May imply intent to replicate down to the smallest detail.

• The museum has a duplicate of the ancient artifact
• Make sure to create a duplicate of the contract for our records

Used in situations involving holding or setting aside something for future use, not necessarily a replica or backup.

• We keep a reserve of food for emergencies
• There should be a reserve of funds in case of unexpected expenses

Used in the context of creating a duplicate of important data to prevent data loss. Often related to IT and data management.

• Make sure you have a backup of your files before updating the software
• We need to backup the server every day

Generally used when replicating data, text, or physical documents. It does not necessarily imply an additional purpose like safety or security.

• I need a copy of your passport
• Can you copy this file and send it to me?

Used when making an exact replica of something. Often implies that the original and the duplicate are identical.

• I need to duplicate this key
• The software automatically duplicates your contacts

Used when storing data to prevent loss, typically in a digital environment. It's more general and can be about any type of data.

• Don't forget to save your work
• I need to save these photos to my computer