| Term | Definition |
| latitude | the measure of distance north and south of the equator |
| longitude | the measure of distance east and west of the prime meridian |
| parallel | a line of latitude |
| meridian | a line of longitude |
| 90 n or s | highest possible degrees for latitude |
| 180 | highest possible degrees for longitude |
| north / south pole | location where highest degrees is in latitude |
| international date line | location where highest degrees is in longitude |
| equator | line where it is 0 in latitude |
| prime meridian | line where it is 0 in longitude |