What does 開催 mean?
開催 is a Japanese noun meaning “holding a meeting, open an exhibition” in English. It is written as 開催 in kanji, かいさい in hiragana, and kaisai in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
彼らは一連の音楽会を開催した。
They gave a series of concerts.