Difference between circular and rotational motion

Mostly I see confusion in trainee faculties and students about rotation motion and circular motion.
Here you go

In rotation the body's centre of mass does not undergo any translation motion. In other words the centre of mass will remain at on place. Like a top spinning on its axis.

In circular motion the body's centre of mass goes around a fixed centre maintaining a constant distance from it. Which means the centre of mass is actually going through a translation motion. For example an ant sitting on the circumference of the spinning top in the above example. 

Now to make matters clear.
Look at a rotating fan. 
The entire fan is not going anywhere and just spinning around its axle. That's rotation motion for the entire fan. 

Now look at the blades of the fan. The centres of the blade are going around the axle but actually making a translation motion. Hence the blades are in circular motion. 

I hope you got the difference.  If centre of mass is not moving then rotation and if moving in a circle then circular.

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