Vice President
noun
You know about 大統領 (president), right? Well, this is the vice version of the president, aka the vice president.
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. It will help if you know the word 大統領 first, though.
あのがっしりした広い肩の男が、この国の副大統領です。
That guy with broad shoulders is the vice president of this country.
副大統領は大統領にあいさつしたが、完全に無視された。
The vice president greeted the president, but the president completely ignored him.
やってみるべきだと思うけど。大統領は無理でも、副大統領ぐらいなら狙えるんじゃない？
I think you should give it a try though. It may not be possible to become the president, but you could try going for vice president.