earth
The word 'Erde' is the German translation for 'earth'. It is used to refer to our planet as well as the soil or ground. In a more metaphorical sense, it can also be used to express a connection to nature or a sense of grounding.
I come from Earth.
This sentence is used to indicate the planet that one comes from, which in this example is Earth.
Earth is the third planet in the solar system.
This phrase provides a fact about Earth's position in the solar system.
The Earth revolves around the sun.
This sentence provides basic astronomy knowledge that Earth orbits the Sun.