What is the meaning of the Four of Pentacles?

Pentacles are about stuff. Money, land, property, jewels, cars--you know, stuff!

The Four of Pentacles is about hanging on to stuff in a way that isn't healthy. Hoarding, lack of generosity, miserliness, stinginess--all of these are aspects of the Four of Pentacles. It can also be about acquisition. Obsession with collecting things.

Pentacles are also known as coins.

This card is known as the Four of Coins.

Because Pentacles are associated with the element of "earth" this card could be called the Four of Earth.

In some Tarot decks this card is known as or is translated as
4 of Pentacles
4 of Coins
4 of Earth
Four of Coins
Four of Pentacles
Four of Earth