By analyzing conceptual transfer this volume offers new insight in areal linguistics. Mainland Southeast Asia unifies great linguistic richness consisting of numerous languages and countless varieties of genetically diverse language families. Nevertheless, the area is known as a prime example for linguistic convergence. Exemplified by spatial reference in Thai, Khmer, Lao and Vietnamese, this study reveals conceptual borrowing due to language contact as an areal defining feature. The results from the field-based data analysis may help answer what extent cultural impact can be used as evidence...