In Hong Kong and Macau, certain phoneme pairs have merged. Although termed as "lazy sound" () and considered substandard to Guangzhou pronunciation, the phenomenon has been widespread in the territories since the early 20th century. The most notable difference between Hong Kong and Guangzhou pronunciation is the substitution of the liquid nasal () for the nasal initial () in many words. An example of this is manifested in the word for you (), pronounced as in Guangzhou and as in Hong Kong.