The term 'Swift Runner' can be described by two crossword solutions: GAZELLE (7 letters) and ANTELOPE (8 letters). Gazelles are graceful, swift-footed antelopes found in Africa and Eurasia. They are known for their long legs and slender bodies, which allow them to run at speeds of up to 50 miles per hour. Antelopes are a group of even-toed ungulates native to Africa and Eurasia. They are also known for their speed, with some species able to reach speeds of up to 60 miles per hour. Both gazelles and antelopes are considered swift runners, making them perfect solutions for the term 'Swift Runner'.