When we say something is "articulated," it means that it can move or be adjusted in different ways. This is kind of like how your own body can move and bend your arms, legs, and head.
For example, think about a toy robot. If it is articulated, it means that you can move its arms, legs, and head in different directions, like bending its elbows, knees, and neck. This makes the robot more flexible and able to do different things.
Articulated also refers to things like vehicles or machines. If something like a bus or excavator is articulated, it means that it is made up of different sections that can bend and turn. This allows these big vehicles to move and make turns more easily.
So, in summary, being articulated means having the ability to move and adjust in different ways, whether it's a toy, vehicle, or other machine.