Investing is putting your money to work for you. Instead of letting cash sit in a savings account, where it might earn a tiny bit of interest, investing gives it the potential to grow much faster. Think of it as planting a money tree. You start with a seed (your initial investment), and over time, it can grow into something much larger.

This growth is especially important for retirement. Why? Because of something called inflation. Inflation means that over time, the cost of goods and services goes up, so the cash you have today will buy less in the future. A dollar today won't buy as much as it did ten years ago. Investing helps your money grow at a rate that can outpace inflation, ensuring you have enough purchasing power when you retire.

When you invest, you're buying assets—things you own that have value. These are often called investment vehicles. There are many types, but most retirement portfolios are built with a few common ones.

When you buy a stock, you're buying a small piece of a company, like Apple or Ford. If the company does well, the value of your piece—your stock—can go up. This makes stocks a powerful tool for growth, but their value can also go down if the company struggles.

Buying a bond is like giving a loan. You lend money to a government or a company, and in return, they promise to pay you back with interest over a set period. Bonds are generally considered safer than stocks because their returns are more predictable. They provide stability to a portfolio.

Instead of picking individual stocks and bonds, many investors use funds that bundle many investments together. This is a simple way to diversify, which means spreading your money across different assets to reduce risk.

A mutual fund is a collection of stocks, bonds, or other assets, managed by a professional. When you buy into a mutual fund, you own a small slice of all the investments inside it. They are a popular and straightforward way to build a diversified portfolio.

An Exchange-Traded Fund (ETF) is similar to a mutual fund. It also holds a basket of investments. The main difference is that ETFs are bought and sold on stock exchanges throughout the day, just like individual stocks.

Every investment comes with a relationship between risk and return. Return is the money you make on an investment. Risk is the chance that you could lose money.

Generally, investments with the potential for higher returns also come with higher risk. Think of it like driving. You can get to your destination faster on the highway, but the risk of an accident is higher than if you drive slowly on a quiet side street.

• Stocks have higher potential returns but are riskier because their value can change dramatically.
• Bonds have lower potential returns but are less risky, making them the safer side street of investing.

Mutual funds and ETFs have varying levels of risk depending on what they hold. A fund that only owns stocks will be riskier than one that holds a mix of stocks and bonds. Understanding this balance is the first step in building a portfolio that fits your goals and helps you sleep at night.

These are the building blocks of investing. With these concepts in mind, you can start thinking about how to combine different investments to work toward your retirement goals.