Static would mean that you don't need an object in order to call the property or method, all you would need to do is call the method/property directly.
An example of this would be as follows:
class Account
{
private static double interestRate;
private double balance;
public static double GetInterestRate()
{
return interestRate;
}
public double GetBalance()
{
return balance;
}
}
by calling it with Console.WriteLine(Account.GetInterestRate());
In comparison of having to create the object initially.
Account myAccount = new Account();
Console.WriteLine(myAccount.GetInterestRate());