1) Board 2) Board of directors 3) Controlling body 4) The office of a director 
A directorate is an agency usually headed by a director, often a subdivision of a major government department. ==Contemporary== ==Historical== == See also == ...[Russia] The Directorate was the short-lived transitional government of Russia during the Russian Revolution. It consisted of five main ministers and lasted for about three weeks. ==Members== ==History== The Directorate was founded by decree of the Russian Provisional Government on September 14, 1917. The Directorate was responsible for `pu...
• (n.) The office of director; also, a body of directors taken jointly.
A department or office within an organisation used to integrate and co-ordinate the activities of a particular function. :: The Courts Service (5th Edition)
Services in NHS organisations are usually grouped into directorates. Medical services (e.g. psychiatry) are grouped into the Medical Directorate. Nursing staff and services make up the Nursing Directorate. The way in which directorates are organised changes from Trust to Trust.
Di·rect'o·rate noun [ Confer French directorat .] The office of director; also, a body of directors taken jointly. 
[n] - a group of persons chosen to govern the affairs of a corporation or other large institution
directorate The office or position of a director.
board of directors noun a group of persons chosen to govern the affairs of a corporation or other large institution
A department that organises and manages a particular set of services within the Trust, for example: Acute, Community and Primary Care; Rehabilitation and Recovery.
the office of a director. · a body of directors.
The eight-member executive board of the Bundesbank ( q.v .). Its members sit on the Central Bank Council ( q.v .).