We should follow some conventions for naming a variable which as given below
We should always use the camel case while declaring variables.
var studentList = new List<T>();
Declaration of variable which returns a single object
var student = new Student();
Declaration of variable which returns multiple objects
//add "s" or "List" suffix: var students = new List<Item>(); //or var studentList = new List<Item>();
Declaration of a private variable
//use "_": private int _num = 10;