Operative (adjective / noun) — فعال أو عامل مُختص: Working or in effect; a worker or agent. Below are 8 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Functioning; having a job.
A person who acts on behalf of another; also a thing that causes an effect.
A person who works.
A person skilled in practical and technical work.
Engaged in action; energetic, working, or currently in operation — not passive, idle, or dormant
functioningin forceeffective