OOP Terminology: class, attribute, property, field, data member

Question

I am starting studying OOP and I want to learn what constitutes a class. I am a little confused at how loosely some core elements are being used and thus adding to my confus

Answer 1

In The Class

public class ClassSample
{
    private int ClassAttribute;

    public int Property
    {
        get { return ClassAttribute; }
        set { ClassAttribute = value; }
    }
}

In the Program

    class Program
    {
        static void Main(string[] args)
        {
            var objectSample = new ClassSample();
            //Get Object Property
            var GetProperty = objectSample.Property;
        }
    }