Frontmatter -- Contents -- Introduction -- Part I: Language variation from a linguistic perspective -- 1. Characteristics of lexical conventionalization in Chinese -- 2. Typological study on expressions of possibility and their related meanings in English, Chinese and Japanese - How modality and voice intersect -- 3. Rhythmic synchrony in conversation -- Part II: Language variation from a nonlinguistic perspective -- A Variation in speakers' cognitive capability -- 1. Botany meets lexicology: The relationship between experiential salience and lexical diversity -- 2. The price of knowledge: A bilingual paired associate learning study -- 3. The use of cognitive state verbs in narratives of school-age Cantonese-speaking children with and without language impairment -- B. Variation in the general context -- 1. Lexical variation of ideophones in Chinese classics: Their implications in embodiment and migration -- 2. A case study of accent shift in the Ryukyuan languages -- 3. Textual patterns of modern western paintings: A cognitive multimodal exploration -- Index