We have spoken of the need to take an objective attitude towards people’s language behaviour. This means we should describe it and not judge it. A fact about languages which can be observed without too much difficulty is that they are variable. For one thing, different groups of people speak different dialects of a language. We are all familiar with the idea of different regional varieties. The differences are not necessarily just differences of accent, but may also include differences of grammar and vocabulary. But not all dialectal varieties are regional. There are also class dialects. A dialect is a variety of the language that is used by an identifiable group of speakers, whether these belong to a region or to a social stratum.

Although, as we have seen from the preceding paragraph, there is as yet no coherent doctrine in English lexicography, its richness and variety are everywhere admitted and appreciated. Its history is in its way one of the most remarkable developments in linguistics, and is therefore worthy of special attention. In the following pages a short outline of its various phases is given.

The most burning issues of lexicography are connected with the selection of head-words, the arrangement and contents of the vocabulary entry, the principles of sense definitions and the semantic and functional classification of words. In the first place it is the problem of how far a general descriptive dictionary, whether unilingual or bilingual, should admit the historical element.

Lexicography, that is the theory and practice of compiling dictionaries, is an important branch of applied linguistics. The fundamental paper in lexicographic theory was written by L.V. Shcherba as far back as 1940. A complete bibliography of the subject may be found in L.P. Stupin’s works. Lexicography has a common object of study with lexicology, both describe the vocabulary of a language. The essential difference between the two lies in the degree of systematisation and completeness each of them is able to achieve.

It should of course be noted that American English is not the only existing variant. There are several other variants where difference from the British standard is normalised. Besides the Irish and Scottish variants that have been mentioned in the preceding paragraph, there are Australian English, Canadian English, Indian English. Each of these has developed a literature of its own, and is characterised by peculiarities in phonetics, spelling, grammar and vocabulary.