| Answer | Crossword Clue |
|---|---|
| ERROR | It's marked on a scorecard |
| ANODE | It's marked by a "-" on a battery |
| SPARE | It's marked with a slash |
| EXIT | It's often marked with a number |
| YEAR | It's marked by a ring in a trunk |
| LUSITANIA | Its destruction marked a turning point in World War I |
