Context: One usage—the more common among linguists—refers to a variety of a language that is a characteristic of a particular group of the language's speakers. The term is applied most often to regional speech patterns, but a dialect may also be defined by other factors, such as social class. A dialect that is associated with a particular social class can be termed a sociolect, a dialect that is associated with a particular ethnic group can be termed as ethnolect, and a regional dialect may be termed a regiolect. According to this definition, any variety of a language constitutes "a dialect", including any standard varieties.

Question: What is the common definition of dialect?
Answer: a variety of a language that is a characteristic of a particular group of the language's speakers

Question: What is the term dialect most often applied to?
Answer: regional speech patterns

Question: Aside from region, what is an example of a factor that may influence dialect?
Answer: social class

Question: What is a term for a dialect particular to a social class?
Answer: sociolect

Question: What do you call a dialect particular to a certain ethnicity?
Answer: ethnolect

Question: What can a region that is associated with a particular social class be called?
Answer: Unanswerable

Question: What can a region that is associated with a particular ethnic group be called?
Answer: Unanswerable

Question: What can a ethnolect that is associated with a particular regional dialect be called?
Answer: Unanswerable

Question: What does any variety of a linguist constitute?
Answer: Unanswerable

Question: Which use is least common among linguists?
Answer: Unanswerable