Finance has several different definitions. It can be both a verb and a transitive noun. There are many areas of finance that are involved in the definitions. There are also different levels of finance, from personal finances to government finances.

Finance is a system. It includes the circulation of money, and the granting of credit. It also involves the making of investments. Banks are an important part of finance, as they grant loans, checking and savings accounts, and can provide investment management assistance. Finance, as a system, incorporates the movement of money from one source to another.

Another definition of finance is the study of management of funds. This is taking a look at how individuals and businesses earn and spend money. By studying this, it is possible to get a fairly accurate picture of the economy. If business are making a lot of money and paying their employees well, the economy, at least locally, is in good shape. When businesses are not making enough money and are forced to pay workers less or even lay them off, the economy is in a downward spiral.

Used as a verb, finance means to have the means of providing money for a project or business. To finance something, there must be adequate money available. In this use, finance also means to extend a line of credit for something, as in to offer financing. This is popular with the purchase of cars, furniture, and other big ticket items.

Personal finance is the management of money on an individual level. It is the finances of one person or of a family. Personal finance involves how much money an individual or family needs to pay for their wants and needs, and where that money comes from. Also included in personal finance is how credit can affect the financial standing of an individual. Those with bad credit may have a harder time financially than those with good, or even average, credit.

The money management technique of businesses is called corporate finance. Corporations have many of the same financial concerns as individuals, such as where money is coming from and how to spend it. For a business, though, these issues are addressed on a much larger scale. Corporate finance involves weighing risks with the potential for profit. If a corporation makes smart financial decisions, they can increase their profit. Too many bad decisions can ruin a business. Because of the grand scale of corporate finance, it may only take one or two bad choices to send a business into bankruptcy.

Public finance involves money management at the level of government. Governments raise capital through taxes. This money is then spent according to a budget. The use of public money is decided by the needs of the residents in a government district, be it a small town, a state, or the whole country. If there is not enough money for everything in the budget, the money for some programs may be decreased or cut out entirely. If there is more money than is needed, the government may save it incase of a budget deficit some other year, or they may choose to lower taxes.

The term finance encompasses many different concepts. It can be used to study the circulation of money, and as a way to provide capital for a new business. Finance is also a branch of mathematics, and of sociology. Money is a central part of life in capitalistic societies, such as in the United States. It has an effect of how lives are lived. Studying finance, in all of its uses, is a way of studying life.