Like many linguistic concepts, the precise content of the notion is very language-specific.
This linguistic and political concept is not unique.
As with many linguistic concepts, there is not a single definition applicable to all languages.
Ugric is a linguistic concept, not an ethnic or cultural one.
Many papers properly apply serious linguistic concepts to absurd or inappropriate topics.
Hindi in this sense is an ethnic rather than a linguistic concept.
Markers should be distinguished from the linguistic concept of markedness.
This varies remarkably from the common meaning used in English, which is solely a linguistic concept rather than a spatial one.
In addition, some linguistic concepts are too abstract to represent graphically.
This makes the tribe a good subject for studying a linguistic concept that first gained wide currency in the 1950's.