| Answer | Crossword Clue |
|---|---|
| PARSEC | Astronomer's unit of distance |
| LIGHTYEAR | Astronomer's unit. |
| LTYR | Astronomer's unit: Abbr. |
| LUNARMONTH | Astronomer's time unit. |
| LEAGUE | Unit of distance |
| MILE | Unit of distance |
| SEAMILE | Tar's unit of distance |
| SEAMILE | Nautical unit of distance |
| PARSEC | Unit of astronomical distance. |
| PARSEC | Astronomical unit of distance |
| BOARDFOOT | Unit of volume (not distance) |
| LIGHTYEAR | Unit of distance (not time) |
| LAP | Unit of distance in racing. |
| PACE | Distance unit of about 30 inches |
| FOOTTON | Unit of energy based on distance and weight. |
| FERMI | Physicist with a unit of distance named after him |
