In a quesadilla, "queso" is Spanish for what?

Which word names both a breed of toy dog and a fictional falcon? Which shirt, a symbol of conformity, appeared in the title of Bob Newhart's 1960 comedy album? Which name belongs to both a spy plane and a rock band with a guitarist named The Edge? Which word goes before "star", "sequoia" and "slalom"? Which optical instrument has a type named for Johannes Kepler? Which name belongs to both a class of U.S. attack submarines and a 1904 Jack London novel? Which word names both a vacation on a ship and a type of missile? What is a wide, triangular necktie knot called?