opening event

noun phrase
UK /ˈəʊpənɪŋ ɪˈvent/
US /ˈoʊpənɪŋ ɪˈvent/

A special party or show that marks the start of something new.

We went to the opening event for the new library.


OTHER MEANINGS

2. The first game or match in a sports competition.

The opening event of the tournament drew a big crowd.

3. The first performance of a play, film, or concert.

The opening event of the film festival sold out quickly.

4. A ceremony held when a new building or business first opens.

The mayor spoke at the opening event of the new hospital.