Meaning
A dollar sign drawn in a heavy, bold style, standing alone without coins or notes. It means money, price or cost in general, not only US dollars.
People use it for prices, paydays, budgets and anything expensive, sometimes stacking it for effect: “That restaurant is 💲💲💲, special occasions only” It also replaces the letter S in playful spellings about money or sales. For actual cash, 💵 shows banknotes instead.