The Chinese word 体系 (tǐxì), meaning "system" or "structure", is a modern compound formed by combining two meaningful characters: 体 (tǐ), which conveys the idea of a "body", "entity", or "main part", and 系 (xì), which denotes a "series", "connection", or "to tie together". This creates a coordinative, or parallel, compound where both elements contribute equally to the new meaning, essentially, an "entity that is interconnected". The term exemplifies how modern Chinese often forms abstract nouns by combining classical roots to conceptualize complex, organized wholes, such as a theoretical framework, an institutional setup, or an integrated network.