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South Vietnam

American  

noun

  1. a former country in SE Asia that comprised Vietnam S of about 17° N latitude; a separate state 1954–75; now part of reunified Vietnam. Saigon.


South Vietnam British  

noun

  1. a former republic (1955–76) occupying the S of present-day Vietnam on the South China Sea and the Gulf of Thailand

"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

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Example Sentences

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The army of South Vietnam, having fought successfully for two years after the U.S. withdrawal of combat personnel, was nevertheless in a comparatively weaker state.

From The Wall Street Journal ● Jul. 24, 2026

Internet sleuths scoured the web for anyone who, like Tran, had appeared alongside the flag of South Vietnam and attacked them.

From Los Angeles Times ● Jun. 8, 2025

The U.S. first sent ground troops to Vietnam in March 1965 to support South Vietnam against revolutionary forces and North Vietnamese troops, but the war had been going on for years before then.

From Salon ● Apr. 30, 2025

Mr. Sasser was stationed in the Mekong Delta, a riverine agricultural hub in South Vietnam that the Viet Cong could easily reach by crossing the nearby Cambodian border.

From New York Times ● May 31, 2024

In South Vietnam, a U.S.-backed leader named Ngo Dinh Diem took power in the capital city of Saigon.

From "Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War" by Steve Sheinkin

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