› a flat object giving information, directions, a warning, etc.: The store had a handwritten sign in the window. A sign advertising the closing-down sale was clearly visible from the road. road/shop/street signs
› a written or printed mark that has a standard meaning: + is the plus sign and % is the percentage sign.
› something that shows that something else exists or might happen or exist in the future: a sign of sth His inability to handle the situation is a sure sign of weakness. a sign that There are signs that the economy is improving Neither side is showing signs of backing down. All the signs are that the worst is over.