How much did the Cultural Revolution change the Chinese language on the mainland?
From what I understand, there are indeed some new words created, or given a new meaning, during the years of cultural revolution. However, those words quickly lose their popularity soon after the arrest of "Gang of Four". Actually, as someone who is born many years after that period, I can hardly think of any word that is still used in the ordinary context, be it oral or written language. And even the Communist Party government tries to avoid using those words, due to the special meanings attached to them. So you can hardly see them apart from the history book, or people telling stories of that era.

However, there are a few exceptions in the recent years, notably the use of "篡党夺权" from the remarks by Liu Shiyu, chairman of the China Securities Regulatory Commission during the 19th National Congress of the Communist Party of China.[1][2] And there has been a rise in the use of "伟大领袖" in local newspapers as well.

For a comprehensive list of new words or words given a new meaning during the cultural revolution, I've found a paper from search engine here. But it's in Chinese, and it also requires purchasing to read further from page 1.



As to the difference between TW国语 and mainland普通话, they are completely irrelated to the cultural revolution.