International mostly means something (a company, language, or organization) involving more than a single country. The term international as a word means involvement of, interaction between or encompassing more than one nation, or generally beyond national boundaries. For example, international law, which is applied by more than one country and usually everywhere on Earth, and international language which is a language spoken by residents of more than one country.
International trade is the exchange of capital, goods, and services across international borders or territories. In most countries, such trade represents a significant share of gross domestic product (GDP). While international trade has existed throughout history (for example Uttarapatha, Silk Road, Amber Road, scramble for Africa, Atlantic slave trade, salt roads), its economic, social, and political importance has been on the rise in recent centuries.
Trade involves the transfer of goods or services from one person or entity to another, often in exchange for money. A system or network that allows trade is called a market.
The law merchant respects the religion of different people.
Lord Ellenborough, Lindo v. Unsworth (1811), 2 Camp. 603.
What is one man's gain is another's loss.
John Duke Coleridge, Connor v. Kent (1891), 61 L. J. Rep. Mag. Ca. 18.
Trade is the mother of money.
Thomas Draxe (1633), reported in George Latimer Apperson, English proverbs and proverbial phrases: a historical dictionary (1929), p. 643.