The document discusses importing, exporting, domestic trade, and foreign trade. Importing is when Irish people purchase foreign goods and services, like iPods or cars. Exporting is when Irish goods and services, such as beef, are sold to other countries. Domestic trade occurs within one country using the same currency and language, while foreign trade between countries can involve different currencies and languages. Foreign trade is important for Ireland's open economy as over 70% of its production is exported and two-thirds of manufacturing jobs relate to exports.