The traffic signal turned red, so I stopped my car.

The linesman signaled for offside.

The train passed by the signal box.

The signaler directed the traffic at the intersection.

The signaller directed the train to stop.

The new billboard will signalize the opening of the store.

The flashing red light is a warning signal.

The train passed by the signal box.

The train passed by the signal tower.

I forgot to use my turn signal when changing lanes.