plenipotentiary
noun/ˌplɛnɪpəˈtɛnʃiˌɛri/
Frequency rank: #18,258 most common English word
Meaning
A person, especially a diplomat, given full authority to represent their government.

Example sentence
The government sent its most trusted diplomat as plenipotentiary to negotiate the peace treaty.
Synonyms & related words
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