Okay, imagine you have a lemonade stand and you sell cups of lemonade to people. You make some money, but you have big dreams of making even more money by expanding your business.
Now let's pretend there are some grown-ups who have a lot of money and they want to help you make your lemonade stand bigger and better. These grown-ups are called private equity firms.
Here's how it works: they offer to buy a part of your lemonade stand business for a lot of money. In return, they become part owners of your business and help you make important decisions about how to grow and make more money.
They might use their own money or borrow money from the bank to invest in your lemonade stand. They may even bring in a team of experts to help you sell more cups of lemonade or make your lemonade stand more efficient.
Once your lemonade stand gets big and successful, the private equity firm may want to sell their share of your business to make a profit. But you will still own a part of your lemonade stand and get to continue running it, but with even more money and possibilities.
So, a private equity firm is like a grown-up friend who is really good at making money and wants to help you make lots of money by investing in your business and helping you grow it.