Research subjects in general linguistics include phenomena related to linguistics and languages on a general level. Thus, its topics are not limited to any individual language. The discipline studies, among other things, the boundaries of variation between languages, linguistic universals, language acquisition, language change and the relationship of language to the speech community and society. General linguistics also encompasses the documentation of individual, in particular small and thus far less known and documented languages. The discipline can be considered a sort of umbrella discipline for all research conducted on languages.