Retrieval of related linked linguistic expressions including synonyms and antonyms

A storage method and control system for storing and interactively accessing a large data base of related linguistic expressions such as synonyms and antonyms. The data base structure includes a stored ordered vocabulary of the linguistic expressions and a stored NxN binary matrix defining the relationship between the expressions in the vocabulary. Address indexes are associated with the vocabulary and binary matrix to enhance access times. The control system controls a programmable digital processor to receive an input linguistic expression and access the binary matrix to generate linkages to the related linguistic expressions in the vocabulary. The related linguistic expressions in the vocabulary are concatenated and displayed for operator review.