1. people who are famous and important in a particular field or activity
Usage: plural form of luminary
2. objects that give off light, especially celestial bodies
Usage: formal; astronomical

Examples

• The conference attracted luminaries from the tech industry.
• Several Hollywood luminaries attended the charity gala.
• The university invited academic luminaries to speak at graduation.
• Political luminaries gathered for the summit.
• The ancient astronomers studied the luminaries in the night sky.
• The sun and moon are the brightest luminaries visible from Earth.