function room

noun
UK /ˈfʌŋkʃən ruːm/
US /ˈfʌŋkʃən rum/

A room where people have parties or meetings.

We booked the function room for my sister's birthday party.


OTHER MEANINGS

2. A space in a hotel or restaurant rented out for private gatherings.

The hotel's function room can seat up to two hundred guests.

3. A room in a community centre used for clubs and classes.

Yoga classes are held in the function room every Tuesday.

4. A large room in a pub or club reserved for special occasions.

They held the retirement dinner in the pub's function room.