In mainland China, Reform and Opening up in the last few decades has opened a floodgate of foreign infusion. Foreign businesses such as KFC, Starbucks, Walmart, McDonalds, and Carrefour are seen everywhere. There have also been many loanwords. Some of the loanwords have become so much a part of the Chinese lexicon that their foreign origin may not even be clear to all. Apart from the social and cultural implications, the influx of things foreign presents quite a challenge to Chinese with its non-phonetic script. Various accommodation strategies have been used to represent foreign words with Chinese characters, including meaning translation, phonetic transliteration, or a combination of both, resulting in varying degrees of semantic and phonetic approximation. Incidentally, the fact that the Rebus (phonetic loan) Principle is extensively used for phonetic transliterations, whereby Chinese characters are used only for their sounds without regard to their meanings, gives the lie to the persistent ideographic myth concerning Chinese characters.

Reflecting the cultural and regional diversity in China, signs may contain dialectal elements, especially those of the major dialects such as Cantonese, Min, and Shanghai/Wu. Dialects can differ in vocabulary and grammar, and particularly in sound. The differences in sound can sometimes be seen in phonetic transliterations. Dialectal words are those that do not have counterparts in the standard language. They are often written by borrowing standard characters just for the sound without regard for their original meaning (Rebus Principle); they can also be written in specially created dialectal characters. Dialects can also resemble classical Chinese, as they tend to retain features of older Chinese.