Cho Hang-bum. 2006. On Synonymous Reduplication of Place Names(1): With a Special Reference to Names of ‘Village, Mountain, Pass, Field’. Korean Semantics, 21. This paper has been written to survey the synonymous reduplication of place names with those of ‘village, mountain, pass, field’. Especially, the present author has intensively dealt with ‘the structure of synonymous reduplication’, ‘the cause of synonymous reduplication’, ‘the semantic change resulted from synonymous reduplication’.It has been turned out that the synonymous reduplication does commonly occur in place names to represent ‘village, mountain, pass, field.’ Above all, it actively happens to those representing ‘mountain, pass, field.’ So its structure is very complicated.The synonymous reduplication of place names has been brought about from two causes on a large scale. One is the semantic completion or reinforcement, and the other is the generation of a new place name. While the synonymous reduplication resulted from the former is a required one, the synonymous reduplication resulted from the latter is an accidental one. The place names in question have no semantic change in spite of their expansion, if the reduplicated element is redundant, but they are accompanied with some semantic change according to their expanding process, if it is required for the generation of new place names.