to put something over or on something else.
to damage something by squeezing it very hard.
to arrange things into different types or groups.
to move up and down.
to come face-to-face with another person
to fall slowly, drop by drop.
the high, steep side of a mountain or rock.
a pile of things, one on top of another.
break or fall apart into small fragments, especially over a period of time as part of a process of deterioration