ABSTRACT
This chapter discusses concept and conceptualization, two related and frequently invoked but under-specified concepts employed in Cognitive Linguistics. It first specifies cognitive linguistic stances on such critical issues concerning concept as its ontological status, structure, origin, and relation to language. Then six parameters are put forward for characterization of the nature and properties of conceptualization. Conceptualization can be investigated from both within and outside in terms of the psychological issue and the sociological issue, and the chapter briefly illustrates how Cognitive Linguistics has handled these two issues.
