Adjective

• S: (adj) operational (pertaining to a process or series of actions for achieving a result) "operational difficulties"; "they assumed their operational positions"
• S: (adj) 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"
• S: (adj) operational ((military) of or intended for or involved in military operations)
• S: (adj) 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"