idiolect

An idiolect is the unique dialect of an individual person at any given time. It acknowledges that no two people speak exactly alike and that each person's dialect is constantly evolving. This concept is a part of sociolinguistics, which studies how language varies based on social factors like class, education, age, and ethnicity.123

While dialects are typically defined by geographic or social groups, an idiolect focuses on the individual's specific linguistic habits, including their vocabulary and grammar. These individual variations contribute to the broader spectrum of language use within a community.1