The article is devoted to the analysis of the compound words and their specific features. Problems of compounds are learnt by some scientists, however, the distinctive features of compounds from the word combinations are not stated as stable. A word that has a special place in a dictionary is the easiest way to simply comprehend the concepts of the subject and try to isolate the main characters from the object. Another feature associated with compound words is its idiomatic feature. The object of the article is the phraseological units contain their general meaning concrete, correct meanings of the components do not directly indicate. The aim of the article is to define the phraseologisms having the same form and meaning as words, because just as words are composed of sounds, phrasemes are also composed of words. Methods: descriptive method and method of analyses were used to prove the in formativeness of the topic relied on the studies of well-known pedagogues. Results (Findings): The analysis of the examples presented in the article shows that the phraseologisms are in the form of a compound or predicative compound consisting of a unit of words, but in the process of speech they do not occur as a compound or predicative compound, but is chosen as such for speech, existing as a ready-made lexical unit in the language. Because they are not a speech unit, but a language unit. Conclusion. Summing up the results, it can be concluded that the phraseologisms, which make up the lexical wealth of our language, have always been the focus of linguists. Phraseologisms as a complex linguistic phenomenon consist of two or more components. In this sense, their practical and scientific study requires a unique approach, a unique method and method.