Sino- is a prefix that is used to refer to things that are related to China or Chinese culture. However, there are several synonyms for this prefix that can be used in different contexts. Some of these synonyms include Sinic- which can refer to the Chinese people or culture, Sinological which refers to the study of Chinese culture, and Sinitic which is used to describe the languages and dialects spoken in China. Other synonyms for Sino- include Han- which refers specifically to the majority ethnicity in China, and Cathay- which is an archaic term for China. It's important to understand these synonyms in order to use them correctly and effectively in different contexts.