| 1. | a flag forming part of a signal code. |
| 2. | a flag indicating that a certain signal code is being used. |
| 3. | answering pennant. |
| one of the flags of the International Code of Signals, a pennant of three red and two white vertical stripes, flown at the dip while a message is being interpreted and close up when it is understood. |
| code flag | |
noun | |
| one of an international code of flag signals used between ships |