What does barter mean?

Barter is a system of exchange by which goods or services are directly exchanged for other goods or services without using a medium of exchange, such as money.

exchange (goods or services) to trade by exchange of commodities rather than by the use of money.

The Money value of goods and services provided exchanged and received back in the same manner without using legal tender.

 A trade in which goods and services are exchange by goods..in other words money free trade.

This the trade & exchange of goods or services for other goods or services, rather than for money.

 'BARTER' is 

The act of trading goods and services between two or more parties without the use of money. 

Bartering benefits individuals, companies and countries that see a mutual benefit in exchanging goods and services rather than cash, and it enables those who are lacking hard currency to obtain goods and services.

Barter is the system used between people before the creation of money whether metal or paper.

But still today this system is used between large companies. For example if there is a large business relationship between two organizations and one of the invoices is due and the company is not able to pay in cash. So the other company will take instead products sold by the other company.

Exchanging one commodity (goods or services) for another, without the use of money.

Exchange of goods and services with approximate equal value in old days of life.

Barter system is primitive and individuals concerned with the conduct exchange their products without the use of money, or in other words, is the replacement of a commodity other commodity. This means that the seller is the buyer himself

The exchange of goods or services for other goods or services, rather than for money.