Concept TECHNOLOGY is an important element of the conceptual sphere of the English language, which is linked to three cognitive domains - KNOWLEDGE, HUMAN ACTIVITY and PRODUCT. Thestructure of the concept was explored through dictionary analysis using monolingual dictionaries of the English language and thesauruses, and through contextual analysis using English language corpus database. The concept has a complex structure, which includes a number of primary, as well as secondary, subconcepts; and, when the word representing the concept is used in context, only one of the subconcepts is expressed as a rule, occasionally more than one. The study has identified such subconcepts as APPLIED SCIENCE, METHOD, EQUIPMENT, SOPHISTICATION.The concept is mainly represented by the word technology, although sometimes by other words as well, such as technique, machinery, equipment. The study of the corpus database has also identified the relative frequency with which the subconcepts constituting TECHNOLOGY are expressed in context and revealed some new subconcepts that are evoked only in context.