A clubhouse is a building that serves as the meeting place or main center for members of a club, sports team, or similar organization. It often includes social and recreational facilities where members gather for activities, discussions, or relaxation.
“The clubhouse has always been the heart of the team’s activities.” — Oxford Learner’s Dictionary
Author’s summary: A clubhouse is a communal building serving as the central hub for members of a club, especially in sports or social organizations.