To raise to a higher grade or standard: upgrading their military defenses.
To improve the quality of (livestock) by selective breeding for desired characteristics.
Computer Science
To replace (a software program) with a more recently released, enhanced version.
To replace (a hardware device) with one that provides better performance.
To exchange a possession for one of greater value or quality; trade up.
Computer Science To replace software or hardware with an upgrade.
The act or an instance of upgrading.
A software program that provides added enhancements over an earlier version.
A hardware device that provides greater performance than an earlier model.
An upward incline.
(ŭp'grād') 