Definition, synonyms and related words
Alternative form of back end
"The software developer was asked to fix a bug in the backend system."
In plain English: The backend is the hidden part of a website that runs behind the scenes to store data and make things work without you seeing it.
"The company hired new developers to work on their application backend."
The word backend is a straightforward compound formed from the words back and end. It was first used in computing to describe the part of a system that handles data processing and storage behind the user interface.