Lexicon, Dictionary, Glossaries, Thesaurus,
Lexicon : In linguistics, the lexicon ( Greek:
Λεξικόν ) of a language is its vocabulary, including its words and expressions. More formally,
it is a language's inventory of lexemes. en.wikipedia.org/wiki/Lexicon The mental dictionary of a person, "listing" all of the
words the person knows, their meanings, forms, and grammatical properties.
Vocabulary : a language user's knowledge
of words dictionary: a reference book containing an alphabetical list of words with information about them
Glossary : an alphabetical
list of technical terms in a subject domain of knowledge with the definitions for those terms; usually as an addended
index, an appendix to a published text on that subject.
Thesaurus : a listing of words
grouped together according to similarity of meaning; a controlled vocabulary arranged in a
order ...structured so that the various relationships are proven; a syndetic structure within a defined
subject field used to organize material or information.