back end noun 5back-end adjective 1forms 2 noun5 •The rear, back, or unseen portion (of something).The back end of the operation is kept out of sight of the customers. •That part of a hardware or software system that is farthest from the user; the internals rather than the user interface. •Money paid on a contingent deferred basis, for example, as a proportion of the profits or revenue of a work.so-called “back end” deals is speculative at best. Ideally, the author or book publisher will secure a percentage of gross revenues rather than net profits, but such deals are rare indeed. — 1995 •(dialect, UK) The latter end of any given time, especially the latter part of the year; autumn; late autumn.I'll see you on the back end of tomorrow. •The processing of spent fuel from a nuclear reactor into reusable materials. back-end adjective1 •Relating to the back end part of a hardware or software system. formsback ends · back-ends
