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plenipotentiary

American  
[plen-uh-puh-ten-shee-er-ee, -shuh-ree] / ˌplɛn ə pəˈtɛn ʃiˌɛr i, -ʃə ri /

noun

plenipotentiaries plural
  1. a person, especially a diplomatic agent, invested with full power or authority to transact business on behalf of another.


adjective

  1. invested with full power or authority, as a diplomatic agent.

  2. conferring or bestowing full power, as a commission.

  3. absolute or full, as power.

plenipotentiary British  
/ ˌplɛnɪpəˈtɛnʃərɪ /

adjective

  1. (esp of a diplomatic envoy) invested with or possessing full power or authority

  2. conferring full power or authority

  3. (of power or authority) full; absolute

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a person invested with full authority to transact business, esp a diplomat authorized to represent a country See also envoy 1

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of plenipotentiary

From the Medieval Latin word plēnipotentiārius, dating back to 1635–45. See plenipotent, -i-, -ary

Explanation

An ambassador who independently represents their home country in another country can be called a plenipotentiary. The word plenipotentiary comes from Latin roots, plenus, "complete or full," and potentem, "powerful." Someone who is a plenipotentiary literally has full powers to represent their government — the prime minister or president has officially authorized them to sign treaties or other agreements on behalf of that government. Some (but not all) diplomats are plenipotentiaries.

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Vocabulary lists containing plenipotentiary

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Speer was given a 20-year prison sentence while Fritz Sauckel, Hitler’s general plenipotentiary for labor mobilization, was hanged for almost exactly the same crimes.

From The Wall Street Journal Nov. 24, 2025

According to Marcin Horala, the Polish government's plenipotentiary responsible for overseeing the hub's construction, it is one of the most important projects underway in central and eastern Europe for military and civilian use.

From Reuters Nov. 21, 2022

Among those attending the event will be Newark town mayor Laurence Goff, Jan Dziedziczak, the Polish government's plenipotentiary for Poles abroad and Wojciech Labuda, the Polish Prime Minister's plenipotentiary for memorial site protection.

From BBC Nov. 6, 2022

The third and final point of the plan would grant the region its own prime minister, who would be “a legitimate and plenipotentiary representative of ARD in talks with international structures.”

From Slate Mar. 16, 2022

He had been successively an advocate at Madrid, procurator to the king and fiscal of the Council of Castile, and minister plenipotentiary at Rome.

From The History of the Inquisition of Spain from the Time of its Establishment to the Reign of Ferdinand VII. by Llorente, Juan Antonio

They were appointed as "plenipotentiaries" and yet were instructed not take any final decisions without their cabinet's permission.

From BBC Oct. 11, 2021

In his biography, Will to Power, Ronan Fanning accused de Valera of failing to explain his strategy properly to the plenipotentiaries before the talks began.

From BBC Oct. 11, 2021

The US President, Woodrow Wilson, briefly raised the question of women’s political representation with his fellow plenipotentiaries, but few wished to see women’s rights recognized as a legitimate matter for international agreement.

From Time Apr. 2, 2015

Mayflower on Long Island Sound off the Roosevelt summer place, Sagamore Hill, T.R. met the plenipotentiaries of Russia and Japan.

From Time Magazine Archive

When ambassadors extraordinary have full powers, as of concluding peace, making treaties, and the like, they are called plenipotentiaries.

From The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide by Various

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