Rubble

Rubble is like when you build something like a tower or a house out of bricks or rocks, and then it falls down or gets knocked over. The things that fall off or break into little pieces are called rubble. It's like if you build a tower out of Legos, and some of the pieces fall off or break when the tower falls over. That's what rubble is. Sometimes people have to clean up the rubble and move it out of the way so they can build something new.