Chinese vs Guoyu

Chinese

name
  • The Standard Chinese language, written in Chinese characters and spoken and spelled using Standard Mandarin pronunciation. 

  • The branch of the Sino-Tibetan language family including Mandarin, Cantonese, Shanghainese, Minnan, and other closely related language varieties and dialects. 

  • The logographic writing system shared by most Sinitic languages. 

  • The Han Chinese, whether in China or overseas. 

  • The citizens of China, particularly citizens of the People's Republic of China. 

adj
  • Of, from, or related to China, particularly now the People's Republic of China. 

  • Of, from, or related to a language native to Han Chinese persons, often used generally of Chinese characters or particularly to refer to Standard Mandarin. 

  • As exotic, unusual, backwards, or unorganized as someone or something from China. 

  • Of, from, or related to the people of China, particularly the Han Chinese and their culture whether in China or overseas. 

noun
  • A person from China or of Chinese descent. 

  • Chinese cuisine. 

  • A meal consisting of Chinese cuisine. 

Guoyu

name
  • The standardized spoken Chinese language, also referred to as Standard Mandarin. The term remains in common use in the Republic of China (Taiwan) and colloquially in Hong Kong (along with Putonghua). In mainland China, Guoyu or Taiwan Guoyu is used to refer to Taiwanese Mandarin (standard), as opposed to mainland standard Mandarin. 

  • The language the Emperor of China spoke. 

How often have the words Chinese and Guoyu occurred in a corpus of books? (source: Google Ngram Viewer )