Synonyms to in service

in force, acting, active, armipotent, at work, authoritative, being, cogent, current, dynamic, effective, energetic, existent, existing, extant, forceful, forcible, functional, functioning, going, going on, high-potency, high-powered, high-pressure, high-tension, in being, in commission, in effect, in exercise, in existence, in hand, in operation, in play, in power, in practice, in process, in the works, in use, inaction, irresistible, living, mighty, mighty in battle, on foot, on the fire, ongoing, operating, operational, operative, potent, powerful, prepotent, present, prevalent, puissant, ruling, running, striking, strong, subsistent, subsisting, telling, under the sun, valid, vigorous, vital, working, in exe