To rub something means to touch or move it gently back and forth against another surface. When we rub our hands together to warm them up, that's rubbing.
When you think about rubbing, think of everyday actions like washing dishes - you're holding a sponge and rubbing it gently over the plates to clean them. Or think of when your skin is dry and you take a moisturizer and start rubbing it into your arms or legs to make them feel soft again.
An impression of an embossed or incised surface made by placing a piece of paper over it and rubbing with graphite, crayon or other coloring agent.
