Say it like this

The money left after a business pays every cost.

For the grown-up

Profit is the money left after a business pays every cost. If a lemonade stand collects five dollars and spends four dollars on lemons, cups, and ice, the profit is one dollar.

The easy mistake

Careful here. Five dollars came in, but the stand did not make five dollars in profit. First subtract the four dollars it spent. Read what a business does, then see the idea at work in The Lemonade Stand Nobody Could Find.

Words next to this one

Business Somebody fixing a problem for somebody else, who says thank you with money. Price How much money somebody is asking for a thing. Not the same as what it is worth to you. Money A way to trade what you have for what you want, without having to find one person who has both. Value How much something is worth to you. It can be different for two people looking at the same thing. Invest Using something valuable now, hoping it becomes more valuable later. It might not.