North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776 | a connection between an electrical device and a large conducting body, such as the earth (which is taken to be at zero voltage) |
North America and South America and Central America | the concerns of this life as distinguished from heaven and the afterlife |
| the abode of mortals (as contrasted with Heaven or Hell) |
| the solid part of the earth's surface |
| the 3rd planet from the sun; the planet we live on |
| the loose soft material that makes up a large part of the land surface |
| once thought to be one of four elements composing the universe (Empedocles), associated with the humour black bile |