Commerce: primarily express the fairy abstract nations of buying and selling products whereas trade may refer to the exchange of a specific class of goods. or to a specific act of exchange .
Business: can refers to an organization set up for the purpose of manufacturing or exchange as well as, serving as a loose synonym of the abstract collective "commerce and industry.
Trade: trade is the voluntary, often asymmetric, exchange of goods and services or money. trade is also called commerce or transaction.
Barter: the direct exchange of goods and services
laters one side of barter were the metals precious metals (coins) bill, paper, money
Transaction: is an agreement communication, or movement carried out between separate entities or objects, often involving the exchange of items of value, such as information, goods, services and money.