Earth
Ground, Land
noun
The kanji and the word are exactly the same. That means they share meanings as well.
地 is often used in formal contexts or literature to refer to the Earth's surface, the ground, or land in a more abstract or overarching sense. To say "earth" or "ground" casually, use 地面. For "land," it's 土地.
Although this is a single kanji all alone, it uses the on'yomi reading. This is the reading you learned with the kanji, you lucky duck.
雨のせいで地に水がたくさん入った。
A lot of water entered the ground due to the rain.
そのライオンは、大きなアフリカの地で生まれました。
That lion was born in the vast land of Africa.
ニックって、地に足がついてるよね。
Nick is down-to-earth, wouldn't you say?