It is a truism that semantic concepts are relative to language. I distinguish two kinds of them in accordance to their relativity to language L; the relativity is either explicit , or implicit . If language is explicated, the concepts of the former kind can be easily explicated in a plausible way and we resist semantic paradoxes. In the case of the latter concepts, the explication is also accessible and paradox-free. One can find then new interesting facts concerning famous Tarski’s (...) theorem. (shrink)