At a final signal from the lookout, the chauffeur turned off his lights once and for all.

The beginning of its downward swing was the final signal for cold murder.

The squad leader watched the second hand of his watch, then gave the final short signal.

Alexander, watching their psychological movement, gave his final pre-arranged signal.

Turner took this as the final signal, and began the rebellion a week later on August 21.

The final alert signal was sent out simultaneously over dozens of circuits.

He waited a full minute more, then gave the final signal, a slashing motion across his neck.

And as the final signal came, Aarn was on his own.

She had long finished, except for sending the final signals that would tell the system they were done.

Kennedy accepted the responsibility since he was President and had given the final kickoff signal.