Investing means putting money into something with the expectation that it will grow in value over time. When people invest, they're choosing to use money now in hopes of having more money later.

The most common form of investing is buying stocks, which are tiny pieces of ownership in companies. If you buy stock in a successful company and the company grows, your investment becomes more valuable. People also invest in bonds (which are like loans to governments or companies), real estate, or even start their own businesses.

Investing is different from saving. When you save money in a piggy bank, you still have exactly what you put in. When you invest, your money might grow significantly, but there's also risk: the investment might lose value instead.

Think of investing like planting an apple tree. You spend money on the young tree and wait years for it to grow. Eventually, it produces apples you can sell, and the tree itself becomes more valuable. You gave up using that money for other things right away, but you gained something more valuable later.

People invest for long-term goals like retirement or college. The key is patience: investments typically need years to grow, and they can go up and down along the way.