The article talks about the direct connection of reciprocity with the concept of symmetry and the derivation of reciprocal devices. In fact, the concept of symmetry is related to the exact sciences, and it is used in linguistics in the application of the meanings of reciprocity, cause and effect. Symmetry of movement between its participants is very important in interaction. Because this is the basis for the formation of a reciprocal device of elements expressing the meaning of interaction. Reciprocal operators play a key role in the formation of the symmetry phenomenon. After all, derivation does not occur without an operator.