This scientific article describes the emergence of new professions in our society, the development and activation of professional terms in our linguistics. Linguists are interested in the general use of two lexemes in the lexical-semantic field of the word professional pair. The development of terms and phrases that describe human activity is associated with the introduction of the term "assimilation" into the language. Terminology is actually the branch that studies and analyzes the emergence, formation, composition, and use of language units belonging to a particular field or field of production in our speech.