かいかい開会kaikai
1.

The act of commencing a meeting or assembly, marking the beginning of discussions or activities.

2.

The formal initiation of a session or gathering, particularly in the context of legislative bodies, often involving ceremonial remarks or announcements.

3.

The process through which a scheduled event, such as a conference or assembly, officially starts, signifying the transition from preparation to participation.

Example:

国会は午後二時に開会されました。

かいかいしき開会式kaikaishiki
1.

A formal event that marks the beginning of a meeting or gathering, often involving speeches and rituals to set the tone for the proceedings.

2.

A ceremonial occasion held at the start of a parliamentary session, during which the Emperor participates, typically emphasizing the significance of the legislative assembly and the governance of the nation.

Example:

開会式は昨日催された。