back end
7 synonyms and 4 antonyms for back end, grouped by meaning and by how common each one is.
Noun — The part of a website or application that runs on a server rather than on the user's device, handling stored data, accounts, calculations and the rules of the business.
Synonyms
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Synonyms by Meaning
1. noun technical
The part of a website or application that runs on a server rather than on the user's device, handling stored data, accounts, calculations and the rules of the business.
“Passwords are never checked in the browser; that happens in the back end.”
Opposites
2. adjective technical
Relating to that server-side part of a system, or to the work of building it.
“She is a back-end engineer and spends most of her day on databases.”
Opposites
How to Use Back End
The word patterns that sound natural to a native speaker.
Written back end as a noun and back-end as a modifier; backend as one word is common among developers.
Etymology
A compound of back and end, describing the part of a system furthest from the user.
Full origin of back end →Frequently Asked Questions
What is the difference between the back end and a database?
A database stores the data. The back end is the code that decides what may be read or written, checks permissions, applies the rules and returns results. A back end almost always talks to one or more databases, but the two are separate parts.
Does every website have a back end?
No. A purely static site — files served exactly as they were written — has no back-end application at all. Anything with logins, saved data, payments or personalised content does.
Why can't the back end run in the browser?
Anything sent to the browser can be read and altered by the person using it, so secrets such as passwords, keys and pricing rules are kept on the server where the user cannot reach them.