Agent and Initiator

Agent noun - Something used to achieve an end.

Initiator and agent are semantically related. In some cases you can use "Initiator" instead a noun "Agent".

Nearby Words: agency, agential

Initiator noun - A person who establishes a whole new field of endeavor.

Agent and initiator are semantically related. Sometimes you can use "Agent" instead a noun "Initiator".

Nearby Words: initiate, initiative, initiation, initiated, initiatory