Word forms: plural Cantonese1. adjectiveCantonese means belonging or relating to the Chinese provinces of Canton (Guangdong in Mandarin).
2. countable noun [usually plural]The Cantonese are the people who come from the Chinese provinces of Canton (Guangdong in Mandarin).
3. uncountable nounCantonese is the language spoken in the Chinese provinces of Guango, Kwansai, and Hong Kong,as well as in other parts of the world.