The term 'Symbol on Road Signs' can be summarized by the crossword solution 'ARROW', which is a five-letter word. An ARROW is a common symbol used on road signs to indicate direction, such as left or right turns. It is also used to indicate that a lane is ending or merging with another lane. Arrows are often used in combination with other symbols, such as circles, squares, and triangles, to provide additional information about the road sign.