This is another common question we have seen appear a few times in this blogs comments section.
For the full game, spawn location (if you are not sure what it means) it’s the place where you will start in the map after getting killed in the game. This location can be changed by sleeping in a Bed or you can also use the /spawnpoint command to change it. There is also options in some mods where you can change the spawn location.
If you are in classic, then the spawn location will be the starting point that was set as default by the admin set. But, it can also be changed by pressing Enter and then press R to save the current location, this will be your new new spawn location.
Hope this is helpful!