The corpora have many different uses, including:

  • language teaching and learning, including the creation of authentic language teaching materials and resources.

  • looking at language variation and change; for example, historical, dialectal, and by genre

  • gaining insight into culture (#18); for example what is said about different concepts over time and in different countries

  • specialized research into legal issues; for example the meaning of words and phrases in laws at different points in history

  • the creation of materials to elicit psycholinguistic data, such as knowledge and use of words and phrases at different frequency levels

  • lexicographical research, since they offer much more information on individual words (including collocates and topics) than any other online corpora

  • analysis of your own texts, to find keywords from your text, compare phrases to COCA, and see detailed information (see above) for each word

  • and much, much more. The corpora are useful for any cases where you want to see what is actually happening in the language (=descriptive), rather than just what is supposed to happen (= prescriptive).

In addition to the 17 corpora, there are also many corpus-based resources. These allow you to: