At the risk of sounding unenlightened...What's a CV?
Curriculum vitae, the record of your life. Written by yourself it includes your personal details, past labor history, and your opinion on why someone should hire you. Google for instructions on how to write one, it's very useful.
CV also stands for Combat Vehicle (90), the tank I was a gunner of in my service

When someone mentions CV to me, my first thought is indeed the tank.