Brooch (noun)

1. A decorative pin, typically with a safety-catch, worn by women to fasten a scarf or other item of clothing.
2. An ornament that fastens by a pin or clasp and is worn on clothing.

Origin:

Middle english broche, from old french broche, from brochier "pierce, prick", from vulgar latin *broccare, from broccus "projecting", from a germanic word related to break.

Examples:

1. She wore a brooch on her lapel.
2. The brooch was a family heirloom.
3. The brooch was made of gold and diamonds.
4. She pinned the brooch to her dress.
5. The brooch was a gift from her husband.