Example: The quorum of seventy had a meeting last week.

Related Resources:

Organization of the LDS Church
The organizational structure of The Church of Jesus Christ of Latter-day Saints (the LDS Church) is the same as that which the Lord Jesus Christ organized during His life on earth.

LDS Church Titles
How to address LDS Church members.

Priesthood
The Priesthood (Aaronic and Melchizedek Priesthoods) held by members of the Church of Jesus Christ of Latter-day Saints. Information on duties, callings, home teaching, and activities.

Doctrine and Covenants 107: 25-26
The Seventy are also called to preach the gospel, and to be special witnesses unto the Gentiles and in all the world—thus differing from other officers in the church in the duties of their calling. And they form a quorum, equal in authority to that of the Twelve special witnesses or Apostles just named.

Doctrine and Covenants 107: 34
The Seventy are to act in the name of the Lord, under the direction of the Twelve or the traveling high council, in building up the church and regulating all the affairs of the same in all nations, first unto the Gentiles and then to the Jews.