South America
noun
Remember how 米国 can also mean America? That goes for North and South America, actually, not just the United States. So, south America is South America.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
南米にいる
to be in South America
南米にある
to be in South America
南米に行く
to go to South America
ペルーは南米の国の一つです。
Peru is one of the countries in South America.
学生時代に、バックパッカーとして南米に行きました。
When I was a student, I went to South America as a backpacker.
南米は決して米国の一部ではありませんよ！
South America is by no means a part of the United States!