экземпляр VS initiate

initialize is the term commonly used with variables whenever u assign a value to it before executing.
example: 
obj = 1obj = "foo"

instantiation refers to assigning an Object to a class(which in turn act as the reference to variables and methods/functions of that class).
example: 
Dim obj As New Object()


reference: https://www.quora.com/What-is-difference-between-Instantiate-and-Initialize-in-programming
meli