A bruise is a mark that appears on your skin after an injury, like a bump or a scrape. It's usually purple or blue and can take some time to go away.
When we get hurt, especially if it's just a minor bump or fall, our body might respond by turning the affected area into a bruise. This happens because of blood leaking from tiny broken blood vessels under our skin. The more severe the injury, the bigger and longer-lasting the bruise can be. Sometimes people get bruises even when they're not visible, like if their muscles get strained or pulled. In those cases, it's called an internal bruise or a muscle bruise.
(transitive) To strike (a person), originally with something flat or heavy, but now specifically in such a way as to discolour the skin without breaking it; to contuse.
