Kampuchean is a word that is used to describe someone or something that is from Cambodia. However, there are several synonyms for the word Kampuchean that can be used in place of it, depending on the context. Some of the synonyms for Kampuchean include Cambodian, Khmer, Khmerian, and Cambodgian. These words are commonly used to describe the people, culture, and language of Cambodia. They can be used interchangeably with the word Kampuchean but may carry slightly different connotations or nuances. Regardless of which word is used, they all serve to refer to the rich and diverse culture and history of Cambodia.