Synonyms: in operation, operating, operational
Definition: being in effect or operation
Usage: 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
Similar words: operative
Definition: being in force or having or exerting force
Usage: operative regulations; the major tendencies operative in the American political system
Synonyms: operational
Definition: (military) of or intended for or involved in military operations
Similar words: active, combat-ready, fighting
Definition: engaged in or ready for military or naval operations
Usage: on active duty; the platoon is combat-ready; review the fighting forces
Similar words: effective
Definition: ready for service
Usage: the fort was held by about 100 effective soldiers
Synonyms: usable, useable, functional, operable, operational
Definition: fit or ready for use or service
Usage: 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
Similar words: serviceable
Definition: ready for service or able to give long service
Usage: serviceable equipment; heavy serviceable fabrics