Dim variablename[(subscripts)][As Type][,name][As Type]]
Allocates storage for and declares the data type of variables and arrays in a module.
The types currently supported are integer, long, single, double and string and variant.
Example:
Sub Main
Dim x As Long
Dim y As Integer
Dim z As single
Dim a As double
Dim s As String
Dim v As Variant ' This is the same as Dim x or Dim x as any
End Sub