| Answer | Crossword Clue |
|---|---|
| NMI | Distance at sea (abbr.) |
| southing | Distance traveled or measured southward, esp. at sea |
| offshore | Situated at sea some distance from the shore |
| northings | Distance traveled or measured northward, esp. at sea |
| ALT | Distance above sea level (abbr.) |
| ELEV | Distance above sea level: Abbr. |
| SLG | At sea: Abbr. |
| SBW | Direction at sea: Abbr. |
| UAM | Weapon at sea: Abbr. |
| USCG | Law enforcers at sea: Abbr. |
