The aim of the paper is to present some onomastic phenomena of theoretic and formal relations between two onimic categories, chrematonyms and toponyms, especially microtoponyms and macrotoponyms. The author tries to formulate the definitions and to introduce the confrontation in the range of these terms adapted to their functional meaning. Many chrematonyms have the capacity to indicate or to suggest places or some connections with them in natural environment. In that case they are similar in their functioning to the sphere of micro- and macrotoponyms. It is also possible to observe the process of toponymization of certain chrematonyms, e.g. names of mills, mines, gravel pits, buildings, ex-factories etc.