Kang, Hui-suk. 2002. A Sociolinguistic Analysis of the Usage of Terms of Address Used in the Service Industry. The Sociolinguistic Journal of Korea, 10(1). This study aims to analyze terms of address using in the field of service in Gwangju city. In particular, this study focuses on linguistic variation and its social significance in the use of terms of address and linguistic attitude of speakers. Findings of this study are spreading of ‘고객님’(clients), innovation and spreading of ‘언니’(elder sister), ‘이모’(aunt), and ‘삼촌’(uncle), and generalization of terms of address of title, etc. It is interesting that these phenomena reveal linguistic change in progress and are controlled according to linguistic attitude of speakers.