The definition of metonymy is typically known as semantic shifts within a domain or domain matrix; however, the existence of cross domains metonymic shifts challenges the typical definition of metonymy； Therefore, the present paper tries to examine metonymy as a prototypical category with part-whole contiguity in spatial domain as its core, and other metonymic patterns relate with it against three dimensions, namely strength of contact (going from part-whole containment over physical contact to adjacency without contact), boundedness (involving an extension of the part-whole relationship towards unbounded wholes and parts), and domain (with shifts from the spatial to the temporal, the spatio-temporal and the category domain), which is mainly based on the fruits of the researches conducted by Peirsman & Geeraerts, and it will be done with the help of corpus collected from Chinese and English materials .