A flagship is a vessel used by the commanding officer of a group of naval ships, reflecting the custom of its commander, characteristically a flag officer, flying a distinguishing flag. Used more loosely, it is the lead ship in a fleet of vessels, typically the first, largest, fastest, most heavily armed, or best known.

FlagShip is both an object oriented and procedural programming language, based on the xBase language dialect and conventions. FlagShip is available for and is cross-compatible to different computer platforms, such as Linux, Unix and Microsoft Windows. As a true compiler, it translates the very popular database 4GL xBase source code to native 32-bit or 64-bit executables, using the same source-code and databases.