1. an ornamental or protective piece of clothing or jewelry worn around the neck
Usage: common in fashion and costume contexts
2. a structural part of an armor or garment that covers or protects the neck area
Usage: historical or technical usage

Examples

• She wore an elegant pearl neckpiece to the formal dinner.
• The medieval armor included a reinforced neckpiece for protection.
• The designer created a striking gold neckpiece as the centerpiece of the collection.
• The costume's neckpiece was made of intricate lace.
• He adjusted his decorative neckpiece before stepping on stage.