THESAURUS
in operation
acting, active, at work, functional, functioning, going, going on, in commission, in effect, in exercise, in force, in hand, in play, in practice, in process, in service, in the works, in use, inaction, on foot, on the fire, ongoing, operating, operational, running, working
ROGET THESAURUS
in operation
Action
N
action, performance, doing perpetration, exercise, excitation, movement, operation, evolution, work, labor, praxis, execution, procedure, handicraft, business, agency, deed, act, overt act, stitch, touch, gest transaction, job, doings, dealings, proceeding, measure, step, maneuver, bout, passage, move, stroke, blow, coup, coup de main, coup d'etat, tour de force, feat, exploit, achievement, handiwork, workmanship, manufacture, stroke of policy, actor, doing, acting, in action, in harness, on duty,
in operation, in the act, in the midst of, in the thick of, red-handed, in flagrante delicto, while one's hand is in, action is eloquence, actions speak louder than words, actum aiunt ne agas, awake, arise, or be forever fall'n, dii pia facta vident, faire sans dire, fare fac, fronte capillata post est occasio calva, our deeds are sometimes better than our thoughts, the great end of life is not knowledge but action, thought is the soul of act, vivre-ce nest pas respirer c'est agir, we live in deeds not years.
Agency
N
agency, operation, force, working, strain, function, office, maintenance, exercise, work, swing, play, interworking, interaction, procurement, causation, instrumentality, influence, action, modus operandi, quickening power, maintaining power, sustaining power, home stroke, operative, efficient, efficacious, practical, effectual, at work, on foot, acting,
in operation, in force, in action, in play, in exercise, acted upon, wrought upon, by the agency of through, by means of, I myself must mix with action lest I wither by des.