1. a person or thing that is the center of attention or admiration
Usage: formal
2. something that serves to guide or direct
Usage: formal; literary

Examples

• The famous actress was the cynosure of all eyes at the premiere.
• Her elegant dress made her the cynosure of the party.
• The new building became the cynosure of the downtown district.
• As team captain, he was the cynosure of his teammates’ respect.
• The lighthouse served as a cynosure for ships navigating the coast.
• Her wisdom made her a cynosure for those seeking guidance.