What is the difference between next to someone and behind someone?
next to is when you are to the left or right of a person, behind someone is when your back is facing them
The difference between a loan and an advance is that loans are contractual agreements that have terms for repayment. A loan is money that you get from someone or a bank that you will pay back, usually with interest. An advance is money that you get based on future earnings such as a paycheck. If you take an advance on your earnings, your next check will be smaller by the amount of the advance.