At a show of her palm, the universal signal for halt, Linda stayed back.

The signs are down; those universal signals of people walking and riding are gone.

Maybe there were some universal signals after all.

His hands moved back and forth across his chest in the universal wave-off signal.

It is the universal signal of police distress.

Doubts have been expressed regarding AI-2's status as a universal signal.

Cuzar shrugged her shoulders in a universal signal of resignation.

The heavy, clicking sound was another universal signal.

She gave the universal thumbsdown signal and worked her way back to the porthole.

That is the universal signal that he was going to spike the ball for a time out.