Variables are analogous to hangers
Variables in Alice are analogous to hangers in a closet.
A variable is a place in memory where data of a specific type can be stored for later retrieval and use.
The hangers in a closet provide a place where clothing items of different types can be stored for later retrieval.
Unlike the hangers in a closet, each variable is given a unique name to make it easy to find in order to store data into and retrieve data from it.
(The hangers in my closet don't have unique names.)