1.   The red signal means you can shoot.

2.   How long will it take you to work out what the signals mean without the child telling you?

3.   An unwarranted emergency signal can also mean that the sender will have to pick up the tab for any rescue operation that ensues.

4.   Because no electron antineutrinos are produced at the beginning of the experiment, any such light signals mean that oscillation has occurred.

5.   It tells you how they looked in the old days, where they are on the field and what the signals mean.

6.   The signal meant she was moving forward just enough to maintain steerage way, struggling to keep her bow into the waves, the safest pose in heavy seas.

7.   When does a red signal not mean stop?