When can you say something is moving?

When we describe the motion of one object with respect to another, we say that the object is moving relative to the other object. A book that is at rest, relative to the table it lies on, is moving at about 30 kilometers per second relative to the sun.


If something is moving, it makes you feel strongly an emotion such as sadness, pity, or sympathy. It is very moving to see how much strangers can care for each other. It was a moving moment for Marianne.