junior / Jr / Jnr / Jr. / jun. = junior, jr (skrót)

Junior with Junior?

Source: http://www.chessninja.com/dailydirt/2006/07/

junior, jr (skrót)

junior , Jr (abbreviation) BrE , Jnr (abbreviation) BrE , Jr. (abbreviation) , jun. (abbreviation) = junior, jr (skrót)

English sentence and Polish translation

John had his father's name, so everyone called him junior. = John miał takie samo imię jak jego ojciec, więc wszyscy mówili na niego junior.