1. To travel over the length of something in a rolling motion, on wheels, or atop or inside of something with wheels. She let go of the marble and watched it roll along the elaborate, winding track. Thankfully the baby carriage rolled harmlessly along the sidewalk without falling over or veering into traffic.

2. To cause someone or something to travel over the length of something in a rolling motion, on wheels, or atop or inside of something with wheels. In this usage, a noun or pronoun is used between "roll" and "along." The drawer gets stuck when you try to roll it along the rails inside the dresser. I loved sitting in the shopping cart as a kid while my mom or dad rolled me along the aisles.

3. To continue moving forward at a steady pace in a rolling motion, on wheels, or atop or inside of something with wheels The ball rolled along the sidewalk for quite a while before he was able to catch up with it. I love just rolling along on my skateboard as I make my way to class each morning.

4. To cause someone or something to move continuously forward at a steady pace in a rolling motion, on wheels, or atop or inside of something with wheels. In this usage, a noun or pronoun is used between "roll" and "along." One of the games we played as kids was to push a big hoop with a stick, seeing who could roll it along the farthest. I rolled him along in his wheelchair through the outdoor market.

5. To proceed or continue making progress at a smooth, steady, or easy pace. Things have been rolling along pretty well so far, which is unusual for a project of this size. A: "How's work, Jim?" B: "Ah, you know, it keeps rolling along."