quindecennial

the quindecennial celebration was a grand event.

they planned a quindecennial reunion for their high school class.

the city held a quindecennial festival to honor its history.

quindecennial milestones are significant in many cultures.

she wrote a book to commemorate the quindecennial of the organization.

the quindecennial review showed impressive progress over the years.

they created a documentary for their quindecennial anniversary.

the quindecennial report highlighted key achievements.

attending the quindecennial gathering was a memorable experience.

many guests attended the quindecennial gala to celebrate.