Pavilion (noun)

1. A large, open-sided tent or temporary building used for entertainment, exhibitions, or other events.
2. A large room or hall, especially one used for exhibitions or concerts.
3. A detached building in a garden or park, used for entertainment or as a summerhouse.
4. A roofed area at the side of a sports ground, providing covered seating for spectators.
5. A building or group of buildings used for a specific purpose, such as a hospital or exhibition center.

Origin:

Mid 16th century (originally as pavillion): from old french paveillon, from pavillon "flag, banner", from late latin papilion- (see papilionaceous).

Examples:

1. The massive pavilion was the site of many exciting events, including concerts, festivals, and trade shows.
2. The grand ballroom of the pavilion was the perfect setting for elegant parties and lavish events.
3. The charming pavilion, surrounded by lush gardens and tranquil pools, was the ideal place for romantic picnics and intimate gatherings.
4. The modern pavilion at the sports ground offered comfortable seating and a perfect view of the action on the field.
5. The pavilion, dedicated to science and technology, was a hub of innovation, showcasing the latest and greatest technological advances.