The term 'On Top of the World' can be summarized by three crossword solutions: ELATED (6 letters), POLAR (5 letters), and ARCTIC (6 letters). ELATED is an adjective meaning to be extremely happy or joyful. POLAR refers to the geographic region located around the North and South Poles, while ARCTIC is a specific region located around the North Pole. Together, these words suggest a feeling of joy and accomplishment associated with being in a remote and isolated place.