| Answer | Crossword Clue |
|---|---|
| thirdhand | received at two removes |
| SINAI | Where Moses received two tablets |
| shoran | system for aircraft navigation in which two signals sent from an aircraft are received and answered by two fixed transponders, the round-trip times of the signals enabling the navigator to determine the aircraft's position |
| shorans | system for aircraft navigation in which two signals sent from an aircraft are received and answered by two fixed transponders, the round-trip times of the signals enabling the navigator to determine the aircraft's position |
