While the study of sociolinguistics is very broad, there are a few fundamental concepts on which many sociolinguistic inquiries depend.
Speech community Speech community is a concept in sociolinguistics that describes a distinct group of people who use language in a unique and mutually accepted way among themselves. This is sometimes referred to as a
Sprechbund. To be considered part of a speech community, one must have a
communicative competence. That is, the speaker has the ability to use language in a way that is appropriate in the given situation. It is possible for a speaker to be communicatively competent in more than one language. Demographic characteristics such as areas or locations have helped to create speech community boundaries in speech community concept. Those characteristics can assist exact descriptions of specific groups' communication patterns. Speech communities can be members of a profession with a specialized
jargon, distinct
social groups like high school students or hip hop fans, or even tight-knit groups like
families and friends. Members of speech communities will often develop
slang or specialized jargon to serve the group's special purposes and priorities. This is evident in the use of lingo within sports teams.
Community of Practice allows for sociolinguistics to examine the relationship between socialization, competence, and identity. Since identity is a very complex structure, studying language socialization is a means to examine the micro-interactional level of practical activity (everyday activities). The learning of a language is greatly influenced by family, but it is supported by the larger local surroundings, such as school, sports teams, or religion. Speech communities may exist within a larger community of practice. It is generally assumed that non-standard language is low-prestige language. However, in certain groups, such as traditional working-class neighborhoods, standard language may be considered undesirable in many contexts because the working-class dialect is generally considered a powerful in-group marker. Historically, humans tend to favor those who look and sound like them, and the use of nonstandard varieties (even exaggeratedly so) expresses neighborhood pride and group and class solidarity. The desirable social value associated with the use of non-standard language is known as
covert prestige. There will thus be a considerable difference in use of non-standard varieties when going to the pub or having a neighborhood barbecue compared to going to the bank. One is a relaxed setting, likely with familiar people, and the other has a business aspect to it in which one feels the need to be more professional.
Social network Understanding language in society means that one also has to understand the
social networks in which language is embedded. A social network is another way of describing a particular speech community in terms of relations between individual members in a community. A network could be
loose or
tight depending on how members interact with each other. For instance, an office or factory may be considered a tight community because all members interact with each other. A large course with 100+ students would be a looser community because students may only interact with the instructor and maybe 1–2 other students. A
multiplex community is one in which members have multiple relationships with each other. A social network may apply to the macro level of a country or a city, but also to the interpersonal level of neighborhoods or a single family. Recently, social networks have been formed by the Internet through online chat rooms, Facebook groups, organizations, and online dating services.
Comparison of frameworks The three frameworks—speech community, social network, and community of practice—represent successive attempts to capture the relationship between social structure and linguistic variation, each addressing limitations of its predecessors. The
speech community model, developed from the work of
Labov and others, groups speakers by shared norms of evaluation: members of a speech community agree on which variants are prestigious or stigmatised, even if they do not all use the same variants themselves. The concept is useful for large-scale survey methods such as
rapid anonymous surveys, but it assumes a stable, geographically bounded group with internally shared norms—an assumption that has been challenged by findings that communities are often dynamic and overlapping. Methodologies based on the speech community concept, such as rapid anonymous surveys, typically require a two-step process: first identifying who shares a set of norms, then studying the variation within that group—a sequence complicated by the fact that communities may shift membership over time. The framework has also been criticised for its focus on shared norms at the expense of individual outliers within a community. Unlike the speech community, a CofP need not be geographically bounded; unlike social network analysis, it foregrounds qualitative, ethnographic investigation of how practices emerge within the group rather than being imposed from outside. The CofP approach also gives speakers a more active role in the research process through ethnographic methods such as extended interviews with individuals and groups. One advantage of this detailed approach is that researchers can hope to distinguish whether a practice has emerged within the community itself or originated externally but became recognisable within it—a distinction that the speech community framework, with its emphasis on pre-existing shared norms, does not readily capture. Eckert's ethnographic study of a Detroit-area high school demonstrated how adolescent social categories ("jocks" and "burnouts") developed distinct vowel systems as part of broader identity practices. ==Differences according to class==