What is ping ying?

Answer 1

In chinese, ping ying is basically the letters of how to say it. For example, in chinese 一 is pronounced like yi, and so the pingying is yi. There are different markings and other sounds to pingying, but thats what ping ying is simply.

Answer 2

"Pinyin" is a system used for transliterating Chinese characters into the Latin alphabet. It uses diacritics to indicate the tone of each syllable. It helps non-Chinese speakers to pronounce Chinese words more accurately.