ankle

An ankle is the joint at the bottom of your leg where it connects with your foot.

When people talk about their ankle, they usually mean the part that's visible when you wear shorts or sandals. You might hear someone say "I sprained my ankle" which means they hurt the ligaments around this joint. Or, if you're playing sports, you might be told to watch out for your ankle so you don't twist it and get injured. Ankle socks are also a thing - they're special socks that keep your feet comfortable when you're wearing tight shoes or doing athletic activities.