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supreme commander

American

noun

the military officer commanding all allied forces in a theater of war.

supreme commander British

noun

the military officer in overall command of all forces in one theatre of operations

"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 supreme commander

First recorded in 1940–45

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.

Air Force Gen. Alexus Grynkewich, NATO’s supreme commander, said on Sunday in Sweden that allies are expanding joint Arctic activities and “military cooperation in this region has never been stronger.”

From The Wall Street Journal • Jan. 13, 2026

In Nazi Germany, for instance, soldiers took a “holy oath” of “unconditional obedience to the Leader of the German Reich and people, Adolf Hitler, supreme commander of the armed forces.”

From Slate • Nov. 21, 2025

Eisenhower, who was the 34th president from 1953 to 1961, served as the supreme commander of the allied forces in Europe during World War II.

From BBC • Oct. 2, 2025

Kristersson said he had summoned the national police commissioner and the supreme commander of the armed forces to evaluate the options.

From Reuters • Sep. 29, 2023

Yezzan would be hosting the Yunkish supreme commander, the noble Yurkhaz zo Yunzak, and they would be expected to perform.

From "A Dance with Dragons" by George R. R. Martin

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023