What is the difference?

What's the meaning of these phrases in League of Legends? Does it all mean "Lots of kills", or is there any difference between them?

Killing spree Rampage Legendary Godlike _____kill

[EDIT]How short is "short time"?; Is there any logo for Hexakill+?; Are Hexakill onwards removed in a patch?

1 Answer

The "Ultrakill" doesn't exist in League of legends.

There are titles for killing multiple enemies within a short time:

Doublekill - Kill 2 enemies Triplekill - Kill 3 enemies Quadrakill - Kill 4 enemies Pentakill - Kill 5 enemies Hexakill - Kill 6 enemies 

There also was the "Legendary Kill" which required you to kill 6 enemies in a 5v5 game, however this has been removed since it was almost impossible.

Apart from the Double to Hexakill streaks, there are also titles for killing sprees that require you to kill a certain amount of enemies without dying.

Killing Spree - Kill 3 enemies without dying Rampage - Kill 4 enemies without dying Unstoppable - Kill 5 enemies without dying Dominating - Kill 6 enemies without dying Godlike - Kill 7 enemies without dying Legendary - Kill 8 + enemies without dying Shutdown - Kill an enemy on a killing spree 

The killstreaks above will not be interrupted by being executed (a monster or turret kills you without any help of a player)