Agent and Apprentice

noun

• An active and efficient cause; capable of producing a certain effect.
  • usage: "their research uncovered new disease agents"
• A representative who acts on behalf of other persons or organizations.
• A substance that exerts some force or effect.
• A businessman who buys or sells for another in exchange for a commission.
  • synonyms: factor, broker
• Any agent or representative of a federal agency or bureau.
  • synonyms: federal agent
• The semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clause.
  • synonyms: agentive role

• (n.) One who acts for or in the place of, another, by authority from him; one intrusted with the business of another; a substitute; a deputy; a factor.
• (n.) One who exerts power or has the power to act; an actor.
• (n.) An active power or cause; that which has the power to produce an effect; as, a physical, chemical or medicinal agent; as, heat is a powerful agent.
• (a.) Acting; -- opposed to patient or sustaining, action.

Agent is a person or institution that handles business and financial transactions between two other people, or between a person and an institution, is described as an agent. The person or institution that authorizes the action is the principal. For example, a brokerage firm employee who acts on your order to buy or sell stock is your agent in that trade, and you are the principal. Agents, particularly those working for brokerage firms, may also be referred to as financial consultants, account executives, registered representatives, or investment executives.

(DoD) In intelligence usage, one who is authorized or instructed to obtain or to assist in obtaining information for intelligence or counterintelligence purposes.

noun

• Works for an expert to learn a trade.
  • synonyms: learner, prentice

verb

• Be or work as an apprentice.
  • usage: "She apprenticed with the great master"

• (n.) One who is bound by indentures or by legal agreement to serve a mechanic or other person, for a certain time, with a view to learn the art or trade, in which his master is bound to instruct him.
• (n.) One not well versed in a subject; a tyro.
• (n.) A barrister, considered a learner of law till of sixteen years' standing, when he might be called to the rank of serjeant.
• (v.t.) To bind to or put under the care of, a master, for the purpose of instruction in a trade or business.