There are several classifications of the vocabulary. The most widely spread one is division according to the: semantic criteria depending on the meaning; non-semantic criteria.
Non-semantic classification:
1 Alphabetic classification;
2 According to the frequency of words;
3 Morphological classification:
a according to the number and type of morphemes the words are composed of: root-words; derivatives root+affixes; compounds root+root;
b according to the common root-morpheme. These are word families: hand; handout; handball etc.;
c according to the common affix. The greater the combining power of the affix the more numerous is the group. These sets as a rule are open.
4 Functional classification. Division of words according to lexiclo-grammatical grouping.
5 Semantic classification:
1 Based on the semantic structure of words:
monosemantic 1 meaning; polysemantic;
2 Stylistic grouping of words: bookish; neutral; colloquial etc.;
3 Based on semantic unity of words: free words; phraseological units; proverbs and sayings etc.;
4 Lexico-semantic grouping. The words are grouped according to the same part of speech or semantic sphere;
5 Thematic grouping: regardless of parts of speech; semantic and extralinguistic grouping;
6 Ideographic grouping: regardless of their grammatical meaning. There is a scientist Roget. He has his own classification of English vocabulary.
According to his point of view there are 15 classes into which the words are divided. Such as:
1 the body and senses;
2 feelings;
3 place and change of place;
4 measure and time;
5 language;
6 behaviour and will etc. Each class is subdivided into subclasses.
