breastplate

A breastplate is a protective piece of armor that covers the chest area. It's often worn by soldiers or people who need extra protection.

When we talk about a breastplate, it usually comes up in historical or military contexts. Think about old movies with knights and samurai - they often wear a big, shiny breastplate over their hearts to protect themselves from sword blows and arrows. In reality, breastplates were made of metal or leather and had a special design to fit the wearer's body. They might be decorated with symbols or emblems that represented the person's rank or family crest. If you're reading about ancient battles or studying military history, you'll probably come across the word "breastplate".