1.
opening of a meeting, commencement
The formal beginning of a meeting, conference, or ceremony.
会議は十時に開会した。
The meeting commenced at 10 o'clock.
開会の挨拶をお願いします。
Please give the opening remarks.
オリンピックの開会式を見た。
I watched the Olympic opening ceremony.
USAGE: 開会 is used for formal beginnings of meetings, assemblies, and events.
COMMON COMPOUNDS:
- 開会式 (opening ceremony)
- 開会の辞/挨拶 (opening address/remarks)
- 開会を宣言する (to declare the opening)
- 開会時間 (opening time)
POLITICAL USE:
- 国会の開会 (opening of the Diet/Parliament)
- 開会中 (while in session)
CONTRAST:
- 閉会 - closing (of a meeting) - opposite