› (esp. of liquids, gases, or electricity) to move in one direction, esp. continuously and easily: Air flows over an aircraft’s wing faster than it flows under it. Lava from the volcano was flowing down the hillside. An electrical current flows from positive to negative. Many rivers flow into the Pacific Ocean. With fewer cars on the roads, traffic is flowing (= moving forward) more smoothly than usual. fig. My thoughts flow more easily (= I can think more easily) if I work on a word processor. › Something can be said to flow if it hangs down loosely and attractively: Her long, red hair flowed down over shoulders.