convocation

US /ˌkɑːn.vəˈkeɪ.ʃən/
UK /ˌkɑːn.vəˈkeɪ.ʃən/
"convocation" picture
1.

a large formal meeting, especially of a university or college, at which degrees are given out

:
The annual convocation ceremony was held in the main auditorium.
Students gathered for the fall convocation to receive their diplomas.
2.

the act of calling people together for a large formal meeting

:
The convocation of the council was announced for next month.
The king ordered the immediate convocation of his advisors.