viet cong

noun, plural Vi·et·cong.

1. a Communist-led army and guerrilla force in South Vietnam that fought its government and was supported by North Vietnam.
2. a member or supporter of this force.

adjective

3. of or relating to this force or one of its members or supporters.

noun (in the Vietnam War)

1. the Communist-led guerrilla force and revolutionary army of South Vietnam; the armed forces of the National Liberation Front of South Vietnam
2. a member of these armed forces
3. (modifier) of or relating to the Vietcong or a Vietcong

n.

also Vietcong, 1957, “the communist guerilla force in Vietnam 1954-1976,” from Vietnamese, in full Viet Nam Cong San, literally “Vietnamese communist.”

South Vietnamese communist revolutionaries during the Vietnam War.