even though  -  even if 

                          Even though is used to express a fact, something that is real or true.
                          Example :
                          ◊ Even though John is rich, he lives in a small house.
                             (John is rich, but in spite of that, he lives in a small house)

                          Even if is used in a supposition or hypothesis.
                          ◊ Example :
                            Even if Caroline earned a big salary, she would not buy a fast car.
                            (Caroline doesn't like fast cars.  It is not because of the price that she won't buy one.)