The primary purpose of this investigation is to show geographical and social variation and the direction of change of ‘Taekho’ (terms of address of household) in Jeonnam Dialects by observing types, systems, and use. The results of this investigation can be summarized as follows. First, the main function of ‘Taekho’ in Jeonnam Dialects is not to designate terms of address of a household but to designate the byname of a married woman. Besides, it functions as modifiers of various kinship terms. Secondly, with a few exceptions, ‘Taekho’ in Jeonnam Dialects are divided into two types, that is, geononymy and the title of 'husband＋ t’ k(떡)'. Originally, ‘Taekho’ developed in a gentry village and diffused to neighbouring commoner villages. However, the title of 'husband＋t’ k(떡)' developed in a commoner village in the eastern dialects of Jeonnam. This is a principal component differentiating the dialects of Jeonnam into two subgroups. Lastly, terms of address of a household are used more frequently by the older generation. As a result, the function of ‘Taekho’ is to relatively weaken terms. Nowadays, teknonymy and fictive kinship terms of address have expanded in their range of use throughout the Jeonnam region.