| ASTROLABE | Medieval instrument used to determine the altitude of the sun |
| MEASUREUP | Have what it takes to determine the altitude? |
| HAND | Measure of four inches used to determine the height of a horse, typically from the ground to the highest point of the withers (4) |
| QUADRANT | Old instrument for measuring the altitude of heavenly bodies (8) |
| RETICLE | Network of fine lines or threads in the eyepiece of an optical instrument used to determine an object's scale or position; also called graticule (7) |
| HIGHNESS | The altitude of a prince's address (8) |
| SPECTRUMANALYSIS | Technique used to determine the composition of stars |
| DECISIONTREE | Graph used to determine the best course to take |
| SPIRITLEVEL | Instrument used to determine whether surfaces are horizontal, or vertical |
| VANE | A metal instrument used to determine wind direction (4) |
| BLOODGROUPS | Globous drop used to determine the types (5,6) |
| DLS | What method is used to determine the revised overs or revised targets for weather interrupted ODIS or T20IS? (1,1,1) |
| POLARIS | Situated where the projection of the Earth's axis or the NCP lies, the current North Star, used to determine latitude and formerly by sailors for navigation (7) |
| DARJEELING | Town in West Bengal at an altitude of 6,700 ft, site of the Chamong Estate and the Happy Valley Tea Estate where the "champagne of teas" is cultivated (10) |
| HEIGHT | Hard to put a figure to the altitude (6) |
| SUCRE | Situated in the Andes at an altitude of around 2,810 metres, the constitutional capital of Bolivia; |
| NAIROBI | Situated between Kampala and Mombasa and rising to an altitude of 5,889 ft, the capital of Kenya (7) |
| ROLLCALL | The school class process used to determine who is present (4,4) |
| QUITO | Capital city of Ecuador, in the Andes at an altitude of 2850 m (9350 ft) (5) |
| LAPAZ | Highest capital city in the world, in the Andes at an altitude of approximately 3,660 m (12,000 ft) (2,3) |
