1. If you buy something, you give money for it. The opposite is sell2. You spend money when you use it to pay for something.3. If you can't afford something, it is too expensive for you.4. You earn money from work that you do. 5. You save money by keeping it instead of spending it. 6. If you lend money to someone, you give it to them for a short time: later they must pay it back.7. You borrow money when someone gives it to you for a short time. 8. When you borrow money from someone, you owe it to them until you give it back.