So the Gordons pull into their dock, and maybe it's at this point that they raise the flags signaling Dangerous Cargo, Need Assistance.

A red flag, however, signals a possible infraction and launches an inquiry into the race.

Similarly, ships could use flags to signal for assistance if, for example, an anchor line parted during a storm.

Everton celebrated but a linesman's flag signalled offside.

Raising a black flag to signal the troopships, the destroyers set off to drop depth charges.

The white flags that the Taliban raised over Kabul's rooftops on Sept. 27, 1996, signaled the advent of the world's harshest form of Islamic rule.

Half of Tokuno-shima's 108 full-time postal workers volunteer for a program in which older residents fly yellow flags to signal them that all is well.

Five of the yellow flags were caused by accidents that happened immediately after the green flag signaled a restart from a previous yellow flag.

This is how to find out what the red flags are signaling in Washington, not nothing to lose but our nightmares.

In the 17th century, a red flag signalled defiance.