When you say words in a language, you are speaking a language. Not sure what that language is, but since you're saying it it must be real.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
I went abroad to learn various languages.
A person who can speak many languages is called polyglot.
I started going to graduate school last year to learn linguistics.