1. An apparatus for the electronic storage of linguistic expressions, said apparatus comprising A. main dictionary means for storing at least one addressable entry representative of a linguistic expression, said expression being at least one of a base form of a regular paradigm, a base form of a partially irregular paradigm, an exceptional inflected form of a partially irregular paradigm, and an element of a fully irregular paradigm, and B. means for storing linguistic information corresponding to at least one said stored entry and comprising at least one of (i) a first coding means for storing a first linguistic information pattern corresponding to at least one said stored regular paradigm base form-reprepresentative entry, (ii) a second coding means for storing an addressable second linguistic information pattern corresponding to at least one said stored partially irregular paradigm base form-representative entry, and (iii) a third coding means for storing an addressable third linguistic information pattern corresponding to at least one said stored fully irregular paradigm element-representative entry.