noun
joint news conference; joint press conference
A news conference held by two or more parties together, such as political leaders, companies, or organizations.
両首脳は共同会見で合意内容を発表した。
The two leaders announced the agreement at a joint news conference.
記者会見 is a general press conference, while 共同会見 specifically refers to a joint one held by multiple parties.
Compound of 共同 (joint, cooperative) and 会見 (meeting, interview).