A text corpora is an enormous collection of electronically stored texts. SAT test writers have used corpora in American and Great Britain to determine the frequency of CONVENTIONAL or generally accepted words such as “first,” “world,” and “know.”
Looking up the frequency of CONVENTIONAL words is only the beginning of how SAT test writers have used text corpora as a tool to create challenging vocabulary in context questions. For example, linguists can now SUBSTANTIATE or empirically confirm their SUPPOSITIONS or unproven beliefs about the frequency of typical word usage. As expected, the results of their inquiries have documented that widely used words like “get” and “life” are PERVASIVE and UBIQUITOUS. Knowing the vocabulary words tested in the Text Corpora Cluster will help you ace any of this sets very UBIQUITOUS questions!
CONVENTIONAL – generally accepted
SUBSTANTIATE – empirically confirm
SUPPOSITION – unproven belief
PERVASIVE – widespread
UBIQUITOUS - widespread



