Define the types of dictionaries.

Lexicography is an important branch of applied linguistics and is closely connected with lexicology. It is a science of dictionary compiling. 1. Lexicography is connected with all the levels of language (semantics, lexicology, grammar, phonetics, stylistics). The dictionary is really the meeting of all the systems - linguistic and non-linguistic.

English dictionaries may all be roughly divided into two groups — encyclopaedic and linguistic.

The encyclopaedic dictionaries, (The Encyclopaedia Britannica and The Encyclopedia Americana) are scientific reference books dealing with every branch of knowledge, or with one particular branch, usually in alphabetical order. They give information about the extra-linguistic world; they deal with facts and concepts. Linguistic dictionaries are wоrd-books the subject-matter of which is lexical units and their linguistic properties such as pronunciation, meaning, peculiarities of use, etc.

Linguistic dictionaries may be divided into different categories by different criteria.

1. According to the nature of their word-listwe may speak about general dictionaries (include frequency dictionary, a rhyming dictionary, a Thesaurus) and restricted (belong terminological, phraseological, dialectal word-books, dictionaries of new words, of foreign words, of abbreviations, etc).

2. According to the information they provide all linguistic dictionaries fall into two groups: explanatory and specialized.

Explanatory dictionaries present a wide range of data, especially with regard to the semantic aspect of the vocabulary items entered (e.g. New Oxford Dictionary of English).

Specialized dictionaries deal with lexical units only in relation to some of their characteristics (e.g. etymology, frequency, pronunciation, usage)

3. According to the language of explanations all dictionaries are divided into: monolingual and bilingual.

4. Dictionaries also fall into diachronic and synchronic with regard of time. Diachronic (historical) dictionaries reflect the development of the English vocabulary by recording the history of form and meaning for every word registered (e.g. Oxford English Dictionary). Synchronic (descriptive) dictionaries are concerned with the present-day meaning and usage of words (e.g. Advanced Learner’s Dictionary of Current English).

(Phraseological dictionaries, New Words dictionaries, Dictionaries of slang, Usage dictionaries, Dictionaries of word-frequency, A Reverse dictionary, Pronouncing dictionaries, Etymological dictionaries, Ideographic dictionaries, synonym-books, spelling reference books, hard-words dictionaries, etc.)