The word **滑行** is a compound verb formed by combining two meaningful characters: **滑** (*huá*), meaning "to slip" or "to slide," and **行** (*xíng*), meaning "to go" or "to move." It is a typical example of a coordinative or resultative compound in Chinese, where the first character describes the manner of the action (a smooth, sliding motion) and the second character denotes the core action itself (moving forward). Together, they logically combine to create the specific meaning of "to glide" or "to coast," referring to a smooth, continuous motion, such as a plane taxiing on the ground, a skater gliding on ice, or a vehicle coasting without power.