/ɪkˈstrɔːrdəˌnɛri ənd ˌplɛnɪpəˈtɛnʃəri ˈæmbəˌsædər/ – Phrase
Definition: đại sứ đặc mệnh toàn quyền.
A more thorough explanation: An extraordinary and plenipotentiary ambassador is a diplomatic official appointed by a sovereign state to represent their government to another sovereign state. This title signifies the highest rank of diplomatic representative, with full powers to negotiate and conclude treaties.
Example: The extraordinary and plenipotentiary ambassador presented the official credentials to the head of state.