as in ambassador
technical
a person (such as a diplomat) who has complete power to do business for a government
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Recent Examples of plenipotentiary
All empires have, like the Roman Empire, been… The American System and the World Organization
On the day our plenipotentiaries exchange their full powers, an immortal date will be inscribed in American diplomatic history.
—
Ezequiel Padilla, Foreign Affairs, 10 Sep. 2024
Walpole’s most frequent correspondent was Horace Mann, the British plenipotentiary in Florence, Italy.
—Catherine Ostler, WSJ, 15 Apr. 2022
Then came Bob, the king of Thailand’s valet plenipotentiary.
—Alejandro Varela, Harper's magazine, 16 Sep. 2019
Morris was eventually the United States’ plenipotentiary to France and spent years afterward touring Europe and having affairs there.
—Michael Brendan Dougherty, National Review, 4 June 2019
Ezequiel Padilla, Foreign Affairs, 10 Sep. 2024
Walpole’s most frequent correspondent was Horace Mann, the British plenipotentiary in Florence, Italy.
—Catherine Ostler, WSJ, 15 Apr. 2022
Then came Bob, the king of Thailand’s valet plenipotentiary.
—Alejandro Varela, Harper's magazine, 16 Sep. 2019
Morris was eventually the United States’ plenipotentiary to France and spent years afterward touring Europe and having affairs there.
—Michael Brendan Dougherty, National Review, 4 June 2019
Recent Examples of Synonyms for plenipotentiary
Noun
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The chart-topping artist, who doubles as a Pandora brand ambassador, further decked her wrist with stacks from the brand.—
Skyler Caruso,
PEOPLE,
8 Sep. 2025
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And Ontario Green Screen hosts a lot of these individuals as ambassadors of our program, people who have taken all of our training, have participated in our quarterly community meetings and really understand what resources are available.—
Etan Vlessing,
HollywoodReporter,
7 Sep. 2025
Noun
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Hamas was then due to respond Tuesday evening to the proposal, a diplomat briefed on the talks told CNN, before Israel’s strike on Doha.—
Max Saltman,
CNN Money,
10 Sep. 2025
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Moscow denied responsibility for the incident, with a senior diplomat in Poland saying the drones had come from the direction of Ukraine.—
Joey Garrison,
USA Today,
10 Sep. 2025
Noun
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The trouble, rather, is that even our top foreign-policy experts and our most sophisticated diplomatists are creatures of our own cultural heritage and intellectual environment.—
Nicholas Eberstadt,
National Review,
11 Sep. 2017
Noun
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When Trump was running for President in 2016, at least one emissary from the campaign suggested to the Emirati rulers that Trump’s deal with Sajwani gave them an in.—
David D. Kirkpatrick,
New Yorker,
11 Aug. 2025
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Ahead of the deadline, Trump's special envoy Steve Witkoff, a real estate mogul and cryptocurrency trader who has turned into Trump's de facto roaming emissary, is expected to visit Russia on Aug. 6.—
Kim Hjelmgaard,
USA Today,
4 Aug. 2025
Noun
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However, papal legates—diplomatic representatives—continue their external functions.—
Josh Hammer,
MSNBC Newsweek,
21 Apr. 2025
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In the 1520s Thomas Wolsey, Cardinal legate of England, drove forward a similar program of moral and financial reform, winding up a further 29 monasteries.—
Crawford Gribben,
WSJ,
29 Apr. 2022
Noun
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The offer is based on a similar proposal presented by US special envoy Steve Witkoff in July, originally crafted in coordination with Israel.—
Ibrahim Dahman,
CNN Money,
6 Sep. 2025
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His special envoy, Steve Witkoff, met French, British, German, Italian and Ukrainian senior diplomats ahead of the summit, before briefly attending the opening session.—
John Irish,
USA Today,
5 Sep. 2025
Noun
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Cho, the foreign minister, and Rubio discussed potentially creating new visa categories for South Korean workers during their meeting on Wednesday, according to a readout from the South Korean foreign ministry.—
Jessie Yeung,
CNN Money,
11 Sep. 2025
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South Korean officials lambast US immigration raid South Korea’s foreign minister headed to the US on Monday as the fallout widened from last week’s immigration raid at a Hyundai-LG battery factory in Georgia.—
Jeronimo Gonzalez,
semafor.com,
10 Sep. 2025
Noun
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At least one former candidate – Kansas City attorney Stacy Lake, who lost to White in the Democratic primary for County Executive in 2022 – has announced plans to run at that point.—
Ilana Arougheti,
Kansas City Star,
10 Sep. 2025
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Another of Soliman’s attorneys interrupted when the immigration officer said the Brotherhood had been a Tier III group since 2012.—
Hannah Allam,
ProPublica,
10 Sep. 2025
Cite this Entry
“Plenipotentiary.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/plenipotentiary. Accessed 14 Sep. 2025.
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