operational -- (pertaining to a process or series of actions for achieving a result; "operational difficulties"; "they assumed their operational positions")
functional, usable, useable, operable, operational -- (fit or ready for use or service; "the toaster was still functional even after being dropped"; "the lawnmower is a bit rusty but still usable"; "an operational aircraft"; "the dishwasher is now in working order")
operational -- ((military) of or intended for or involved in military operations)
operational, in operation, operating -- (being in effect or operation; "de facto apartheid is still operational even in the `new' African nations"- Leslie Marmon Silko; "bus service is in operation during the emergency"; "the company had several operating divisions")
(Sound)
