1. special anniversaries marking significant periods, especially 25th, 50th, or 60th years of important events
Usage: plural of jubilee
2. times of celebration and rejoicing
Usage: plural of jubilee

Examples

• The royal family celebrated multiple jubilees throughout the queen’s long reign.
• Golden jubilees mark 50 years of marriage or service.
• The church organized jubilees to commemorate its founding decades.
• Diamond jubilees are rare and special occasions.
• The company held jubilees for employees with long service records.
• Silver jubilees celebrate 25 years of achievement.
• The town planned elaborate jubilees for its bicentennial year.