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We’ve got loads of key subject terms in our subject glossaries. There are three ways of finding what you are looking for:

  • First click on the letters of the alphabet to browse for terms.
  • Select a subject from the drop-down menu above to filter the terms by Subject.
  • Or lastly, type the term you are looking for into the search box.


Here are some examples of the kinds of definitions you’ll find on this page.

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in trade when a country can produce a good at a lower cost (using fewer resources) than any...


the minimum income that is needed to fulfil the basic needs.


the price a consumer pays for the goods and services in rands and cents.

the Celsius temperature at which the volume of the gas is zero.


the process whereby the products of digestion are transported from the digestive tract into the...