corpus
A corpus is a large collection of authentic texts used for studying language or generating linguistic data. Modern corpora contain texts whose total length is billions or dozens of billions of words. A corpus is usually tagged. (= annotated, i.e. the words are labelled with information about the part of speech and their grammatical category).
The terms corpus and text corpus and language corpus are interchangeable. Using a corpus for any type of linguistic or language oriented work ensures that the outcomes reflect the real use of the language and the results are not affected by subjective judgements. more on copora»