Jewellery is like sparkly, shiny things that you can decorate yourself with! It's kind of like how you might put stickers on your notebook or wear a fun bracelet, but jewellery is usually made with precious metals like gold or silver and sometimes has real gems like diamonds or pearls in it.
People wear jewellery for lots of reasons - sometimes to look pretty, sometimes to show off their personal style, and sometimes to celebrate something special like a birthday or anniversary. You can find jewellery in lots of different shapes and sizes, like necklaces, bracelets, rings, and earrings.
Sometimes people make their own jewellery, but most of the time they buy it from a store or online. It's important to take good care of your jewellery to keep it looking nice - you might want to store it in a jewellery box, clean it with a special cloth, or take it to a jeweller to get it repaired if it gets damaged.
All in all, jewellery is a super cool way to accessorize and express yourself!