Used as an expression of agreement.
Steve: I’ve got to do something about my grades. I’m such a demoto lately.
Johnny: Word. I’m the same way.
or
Steve: I can’t wait for the weekend. I’m going to chillax all day on Saturday.
Johnny: Word.
'Word' was originally coined as 'word up' in the 1980’s. The meaning is so prominent that it can be used as a complete sentence. It is used by many demographics, but is most popular among teenagers and young adults in Aurora.
Eminem uses it perfectly in his song 'Berserk':