2. The method of claim 1 , further comprising: identifying a term of the plurality of primary and secondary terms occurring in a related content document; extracting content associated with the identified term from the related content document, the extracted content comprising a secondary definition of the identified term; and storing the secondary definition in connection with the identified term.
2. The method of claim 1 , further comprising: identifying a term of the plurality of primary and secondary terms occurring in a related content document; extracting content associated with the identified term from the related content document, the extracted content comprising a secondary definition of the identified term; and storing the secondary definition in connection with the identified term. 6. The method of claim 2 , wherein the related content document is a thesaurus including synonyms of the identified term, and wherein extracting the content associated with the identified term comprises: extracting the synonyms from the thesaurus; and storing the extracted synonyms in connection with the identified term.