What is finance and what is accounts, what is a relationship between these, what is a different?

Accounts is nothing but Book keeping and generation of financial statements.

Finance is much more wider concept- It  is based on accounting data and involves the analysis of financial statement such as financial ratios, cash flow statement, budgeting, etc

Finance is the process of planning and managing a business' assets. Accounting (accounts) is the art of the recording and reporting financial transactions. Both functions deal with the administration of a business' assets

Although finance and accounting are both involved with the financial aspect of a business or organization, the managers and employees in these departments deal with finances in completely different ways. Accounting deals mainly with preparing and examining financial records and ensuring their accuracy, making sure taxes are paid on time and properly, and assessing financial operations to help ensure that organizations run efficiently. On the other hand, finance deals primarily with making important financial decisions for an organization and helping “develop strategies and plans for the long-term financial goals of an organization

The process of keeping business accounts.

the management of large amount of money, espacially companies or government.

Accounting and finance both deals with business assets.

They are complementary to each other. 

Accounting is about preparing financial statements, but finance is about analyzing them (testing feasibility, performance, profitability..etc).