Damage & Destruction

A blot is an uneven spot or stain. When you say blot, you usually mean a blot of ink on paper.

Something is broken if it is so badly damaged it can't be used for its original purpose. For example, a chair is broken if a leg has come off and you can't sit on it. The cup in the picture is shattered so badly it no longer holds coffee. Some things that are broken can be fixed, but not all.

Corroding is the process by which something becomes corroded. Metals usually corrode by a slow chemical reaction.

Corrosion is what appears on something that is corroded, or the process of something becoming corroded.

A crease is a line that has been made in a surface, usually by bending or folding it. People get creases in their skin in places that move, like around their eyes. The piece of paper in the picture has creases in it from where someone has folded it into the shape of a paper plane.