You searched for: “convocation
convocation (s) (noun), convocations (pl)
1. A large formal assembly; such as, of a college or university community, or the senior members of a church: Every ten years a convocation at the conservatory of music takes place for all the alumni where they enjoy meeting and talking with their old classmates after the president’s speech.
2. The arranging, or calling together, of a formal meeting: A convocation was decided upon so that the heads of the language departments could decide about the use of the funds which were appropriated to them from the state.
3. Etymology: from Latin convocationem, from convocare, "to call together"; from com-, "together" + vocare, "to call"; from vox, "voice".