Military forces and civilians have joint parties on the Army's day and spring festival.
With the budget deficit rising, the two United States agencies held a joint party one year.
One of the results was the creation of a joint working party to resolve the border disputes between the two countries.
There was another birthday party, this one a joint party for him and his younger brother, in Washington.
Miliband said he and David threw a joint party for their mother last week.
Earlier this year, we also established a joint working party with the charity commission on trustee training.
Carolyn is against the idea, so Harold gets them to compromise on a joint party at Charlie's.
She was surrounded by over 60 members of this extended family at her joint 90th party just two months ago; what a joyous memory!
The joint parties polled strongly, gaining eight seats in Parliament.
Furthermore, the Commission and said parties have agreed to set up a joint working party to discuss issues concerning products' countries of origin.