Definitions for "evangelize"
To instruct in the gospel; to preach the gospel to; to convert to Christianity; as, to evangelize the world.
To preach and attempt to convert (people) to one's firmly held belief.
To explain ones beliefs to another in the hope that they might wish to adopt them. The word is sometimes used as a synonym for " Proselytize" -- to actively attempt to convert another person to your beliefs.