I would call cropping as the end stage .Taking the crop.The finished product.Man there r heaps of names for the same thing.
Pinching ,Tipping,topping all the same thing.Then if u grow that tip u could call that a cutting , clone,ect..
When u do pinch the top out u wont at least 5 to 6 nodes for it to shoot from.Pinching bending or doing nothing at all depends on what results u r after ,usually depends on your grow room set up...