Being a cognitive phenomenon, the concept is formed and exists in the human cognito sphere, and only when it is realized in speech, it yields itself to research. Scientists distinguish in the structure of the concept: 1) active and passive signs; 2) actual, passive signs and internal form; 3) the nucleus, perinuclear and peripheral and peripherai features are distinguished in the structure of the concept; 4) in the structure of the concept, components such as the concept itself - micro concept - aspect - sector - element (feature) are distinguished in descending order.