| Sounding the retreat in late September 1903, Harrison signaled the surrender of the professional politicians. |
| He signaled secretly to his gang, but the cold man's quick eye caught everything. |
| His air bag deployment automatically signaled his location to an emergency response unit, and help is on the way. |
| The man rapidly typed a code into a security system and a loud buzzing sound signaled the door's release. |
| On one of his quick ascents during one of the many dogfights that day, Roll's wingman signaled his squadron leader. |
| The sounds of approaching footsteps signaled the return of the other tourists. |
