He is six years 'junior' to me. = He is 'junior' to me by six years. [=he is six years younger than I am]
He is six years my 'junior'. [=he is six years younger than I am]
She is a 'junior' partner in the law firm.
(..) make sure no one takes my seat. So, what'd you been up to? I'm just here to tell my story. That I was willing to finance a Kryptonian deterrent, but a certain junior Senator from Kentucky decided to block it. Yes, the Chair of the Committee on Superman is soft on security. Greg, why hasn't he (..)2016 Batman v Superman: Dawn of Justice