AoE:

AoE stands for “area of effect,” a term for abilities, items, or damage that affect everything within a defined radius or zone instead of a single target. In Dota 2, AoE spells are used to hit multiple heroes, clear creep waves, control space, or set up team fights. The size and shape of the area can vary, so players often position carefully to maximize hits or avoid being caught in it.

Related: Crowd Control, Initiation