What does the '=>' syntax in C# mean?

Func<Person, string> nameProjection = p => p.Name;

Func<Person, string> nameProjection = delegate (Person p) { return p.Name; };

x => x + 1

button.Click += new EventHandler((sender, e) => methodInfo.Invoke(null, new object[] { sender, e }));

delegate int del(int i);
del myDelegate = x => x * x;
int j = myDelegate(5); //j = 25

somevar.Find(delegate(int n)
{
   if(n < 10)
      return n;
});

somevar.Find(n => n < 10);

MyObjectReference => MyObjectReference.DoSomething()

MyCollection.Where(myobj => myobj.Age>10)