(business) A consultant hired to assist with implementing changes in an organization's structure or operations.

(espionage) A secret agent recruited by another agent, and having no direct contact with the agency.

plural of nomen agentis

(Scotland, law) A solicitor, certified by the Law Society of Scotland.

(medicine, pathology) A rare anomaly consisting of a midline vertical cleft through the upper lip.

plural of principal-agent problem

The problem that a person or entity serving as an agent for another, and able to make decisions on the other's behalf, may be motivated instead to make decisions that benefit themselves.

a congenital malformation characterized by a failure of the Müllerian duct to develop, resulting in a missing uterus and variable degrees of vaginal hypoplasia of its upper portion

The jargon used by agents or an agency.

(US, humorous) The National Security Agency.