It is also used to signal an end-of-file on some operating systems.

They had said there was a strong chance that the craft would not be able to signal its status until sometime on Sunday.

An hour will probably signal fairly early on some obvious problems or opportunities.

The entries to all the missions are signaled on the route.

Her 'link signaled a number of times reporters on the scent.

He signaled to his men on his right in the same way.

A situation which may signal a cause for exigent action on corruption.

But they signal on another level that we are in a state of siege.

Land was not signaled until five o'clock on the morning of the 6th.

"Shall we light a fire, so as to signal our presence on the coast?"