Word: Capital Gains Tax
Definition: Capital gains tax is a type of tax that you have to pay on the profit you make when you sell something valuable, like stocks or real estate (like a house). If you buy something for a certain price and sell it for a higher price, the money you made from that sale is called a "capital gain," and the tax you pay on that gain is the capital gains tax.
In summary, capital gains tax is the tax you pay on the profit made from selling something valuable.