Futhermore, if speech communities are definded solely by their lingustic characteristics, we must acknowledge the inherent circularity of any such definition in that language itself is a communal possession. we must also knowledge that using linguistic characteristics alone to determine what is or is not a speech community has proved so far to be quite impossible because people do not necessarily feel any such direct relationship between linguistic characteristic A,B,C and so on and speech community X. What we can be sure of is that speakers do use linguistic characteristics to achieve group idenity with, and group differentiation from, other speakers but they use other characteristics as well social cutural political and ethnic to name a few.