What does the word Viet Cong mean?

Answer 1

For the US Servicemen in Vietnam, it was obvious who the NVA were, they wore green uniforms and pith helmets. The VC (Viet Cong) were another matter. They were local guerillas; South Vietnamese Citizens who were VIETNAMESE COMMUNISTS. Often wearing civilian clothing, the only way a GI could tell if they were VC: was if they carried an AK-47, SKS, or RPG; or in an area where there wasn't supposed to be anyone (normally a "free fire zone").

Answer 2

The Viet Cong were communists living in South Vietnam. They were NOT members of the North Vietnamese Army (NVA), but their allies.