The article is devoted to the theory of the functional-semantic field of a language. It describes the functional-semantic field of the languages as one of the methods, which characterizes the semantic space of the language. It speaks of the same phenomenon in English and Azerbaijani by demonstrating examples from both languages. The author finds many identical features and differences in the functional-semantic of the two languages and sometimes appeals to the materials of the Russian language,

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... too. The location and displacement micro fields are separated in the horizontal structure of functional-semantic spatial field of Azerbaijani and English. The grammatical units of the functional-semantic field of the Azerbaijani consist of suffixes of the spatial cases of the nouns. The space has a grammatical nuclear and is differentiated with high productivity by creating spatial meaning as a grammatical means. In the present stage of development of linguistics attention to the study of systemic relations and functional aspects of languages has grown. The theory of functional-semantic field, which has emerged in functional grammar, is applied to the study of different categories of language. It has been defined that the functional-semantic field should be analyzed like this: "Functional-semantic field is a bilateral formal-content unity formed by lexical, grammatical and word-building elements, which belong to the same semantic field mutually connected with them and grammatical (morphological and syntactic) means". It is noteworthy to mention that any semantic category forms the basis of a functional-semantic field and the semantic invariant representing this category combines different kinds of language means and forms the nuclear of their interaction. Different studies have dealt with the functional-semantic theory. The researches on this field are known to be studied different issues of spatial theory and different spaces have been studied on the basis of the materials of different languages.