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internationalist

American  
[in-ter-nash-uh-nl-ist] / ˌɪn tərˈnæʃ ə nl ɪst /

noun

  1. an advocate of internationalism.

  2. an expert in international law and relations.

  3. (initial capital letter) a member or adherent of a communist or socialist International.


internationalist British  
/ ˌɪntəˈnæʃənəlɪst /

noun

  1. an advocate of internationalism

  2. a person versed in international law

  3. (capital) a member of an International

"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

Etymology

Origin of internationalist

First recorded in 1860–65; international + -ist

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.

TR was conservative and progressive, internationalist and nationalist, conservationist and hunter.

From The Wall Street Journal • Dec. 12, 2025

It is quite another to suggest at an internationalist forum that a G7 ally, Canada, become a state of your nation, eliciting gasps in the audience, and not just from Canadians.

From BBC • Jan. 24, 2025

Haass was referring to the more internationalist policies of President George H.W.

From Los Angeles Times • Mar. 27, 2023

First was the party establishment, trying to sustain a business-friendly and internationalist agenda and an institutionalist approach to governance.

From New York Times • Apr. 30, 2022

Hesitatingly she took the paper and read aloud, swiftly: The bearer of this pass, John Reed, is a representative of the American Social-Democracy, an internationalist….

From Ten Days That Shook the World by Reed, John