dictionary(n = noun.communication) lexicon - a reference book containing an alphabetical list of words with information about them;
is a kind of wordbook
has parts: dictionary entry, lexical entry
has particulars: bilingual dictionary, collegiate dictionary, desk dictionary, etymological dictionary, gazetteer, learner's dictionary, school dictionary, little dictionary, pocket dictionary, spell-checker, spelling checker, unabridged, unabridged dictionary

dictionary, n. (pl. -ies)
1 a book that lists (usu. in alphabetical order) and explains the words of a language or gives equivalent words in another language.
2 a reference book on any subject, the items of which are arranged in alphabetical order (dictionary of architecture).

Etymology:
med.L dictionarium (manuale manual) & dictionarius (liber book) f. L dictio (as DICTION)

N  word, term, vocable, name, phrase, root, etymon, derivative, part of speech, ideophone, dictionary, vocabulary, lexicon, glossary, index, concordance, thesaurus, gradus, delectus, etymology, derivation, glossology, terminology orismology, paleology, lexicography, glossographer, lexicologist, verbarian, verbal, literal, titular, nominal, conjugate, paronymous, derivative, verbally, verbatim, the artillery of words.

N  list, catalog, catalogue, inventory, register, account, bill, bill of costs, terrier, tally, listing, itemization, atlas, book, ledger, catalogue raisonne, tableau, invoice, bill of lading, prospectus, bill of fare, menu, carte, score, census, statistics, returns, contents, table of contents, outline, synopsis, checklist, table, chart, database, index, inverted file, word list, concordance, dictionary, lexicon, vocabulary, glossary, thesaurus, file, card index, card file, rolodex, address book, Red book, Blue book, Domesday book, cadastre, directory, gazetter, almanac, army list, clergy list, civil service list, navy list, Almanach de Gotha, cadaster, Lloyd's register, nautical almanac, who's who, Guiness's Book of World Records, roll, check roll, checker roll, bead roll, muster roll, muster book, roster, panel, jury list, cartulary, diptych, cadastral.

N  interpretation, definition, explanation, explication, solution, answer, rationale, plain interpretation, simple interpretation, strict interpretation, meaning, translation, rendering, rendition, redition, literal translation, free translation, key, secret, clew, clavis, crib, pony, trot, exegesis, expounding, exposition, hermeneutics, comment, commentary, inference, illustration, exemplification, gloss, annotation, scholium, note, elucidation, dilucidation, eclaircissement, mot d'enigme, symptomatology, semiology, semeiology, semiotics, metoposcopy, physiognomy, paleography, oneirology acception, acceptation, acceptance, light, reading, lection, construction, version, equivalent, equivalent meaning, synonym, paraphrase, metaphrase, convertible terms, apposition, dictionary, polyglot, explanatory, expository, explicative, explicatory, exegetical, construable, polyglot, literal, paraphrastic, metaphrastic, consignificative, synonymous, equivalent, in explanation, that is to say, id est, videlicet, to wit, namely, in other words, literally, strictly speaking, in plain, in plainer terms, in plainer words, in plainer English, more simply.

N  school, academy, university, alma mater, college, seminary, Lyceum, institute, institution, palaestra, Gymnasium, class, seminar, day school, boarding school, preparatory school, primary school, infant school, dame's school, grammar school, middle class school, Board school, denominational school, National school, British and Foreign school, collegiate school, art school, continuation school, convent school, County Council school, government school, grant-in-aid school, high school, higher grade school, military school, missionary school, naval school, naval academy, state-aided school, technical school, voluntary school, school, school of art, kindergarten, nursery, creche, reformatory, pulpit, lectern, soap box desk, reading desk, ambo, lecture room, theater, auditorium, amphitheater, forum, state, rostrum, platform, hustings, tribune, school book, horn book, text book, grammar, primer, abecedary, rudiments, manual, vade mecum, encyclopedia, cyclopedia, Lindley Murray, Cocker, dictionary, lexicon, professorship, lectureship, readership, fellowship, tutorship, chair, School Board Council of Education, Board of Education, Board of Studies, Prefect of Studies, Textbook Committee, propaganda, scholastic, academic, collegiate, educational, ex cathedra.

bilingual dictionary, collegiate dictionary, desk dictionary, dictionary definition, dictionary entry, electronic dictionary, etymological dictionary, learner's dictionary, little dictionary, machine readable dictionary, oxford english dictionary, pocket dictionary, school dictionary, unabridged dictionary