There must be no talking, and you will use signs.

But when he used signs, there seemed to be some understanding.

It was not a sign used by any tribe his people knew.

There were several types of signs used in this system.

"I'm going to use signs today to answer these questions," he said.

Throughout the script's history, only 206 different signs were used in total.

This sign can be used only by the first player of the trick.

These signs are used at airports with different areas of ground control.

If the driver is playing, signs cannot be used once they have been passed for safety reasons.

For historical reasons there is no standard sign used across Germany.