This article provides a detailed analysis of the concept of socially restricted vocabulary, examining its structural, semantic, and stylistic features. Groups of words limited by social boundaries jargon, slang, argot, and taboo lexicon - are explored as distinctive linguistic elements of various social groups. The article reveals the communicative, expressive, and identificational functions of social lexicon, drawing on common examples from Uzbek and English. Socially restricted vocabulary refers to a set of distinctive lexical units used by a specific social group or stratum, which stands apart from the general lexical fund of the language. This lexicon is shaped by the cultural, social, and historical context of the language and reflects the unique worldview, customs, and values of a particular group. In-depth analysis of the structural, semantic, and stylistic features of socially restricted vocabulary in English and Uzbek represents an important area of linguistic research, as it helps to elucidate the social functions of language. This article presents a scientific and theoretical examination of socially restricted vocabulary from structural, semantic, and stylistic perspectives. Specifically, it addresses the structural, semantic, and stylistic issues pertaining to socially restricted vocabulary.