Heung Gong Yuet Yu (香港粤语), or "Hong Kong Cantonese," has been spoken for over 1,000 years, originating from Guangdong province in Southern China.

In Hong Kong, Cantonese is written using Traditional Chinese characters (繁體字,fántǐzì), which are more complex than the Simplified Chinese characters used in mainland China. The language is unique for its six distinct tones and its use of colloquial expressions (*), as well as slang not typically found in Mandarin or other Chinese dialects.

While Cantonese is also spoken in Macau, the main language there is Patuá (Macanese Patois), a creole that developed during the Portuguese colonial period in the 16th century, blending Portuguese with Cantonese and other local languages. 

Aside from Traditional Chinese characters similar to Hong Kong, Patuá uses the Latin alphabet for writing, with some Chinese characters included. Its vocabulary reflects Macau's multicultural heritage, incorporating Portuguese, Cantonese, Malay, and other influences.

Note:

(*) Colloquial expressions refer to informal phrases or sayings that are commonly used in everyday conversation.