Zoneing is basicly a bubble around champions when in their laning phase that if crossed by an enemy champion will most likely result in death. For example if the enemy has a morgana sitting next to a tower with no friendly creep attacking it the bubble or "safe zone" would be anywhere out of turret range "assuming it's a 2v1, if not then the bubble would be bigger" but circumstances change depending on a champions health, build, and lane combo. Taking the same example, Morgana with a tower and no creep, if the enemy has per say a blitzcrank and a tristana your Safe zone" would be alot bigger compared to morgana's "Blitz pull then trist shoots morg even further from the tower most likely resulting in death" Hope i cleared up Zoning a little for ppl reading this and if anyone wants to play add me in LoL my name is Skullmaker90