You don't shorten 'it has'.
you shorten it by etc.
Vitamins can't shorten your height.
Bill Shorten's birth name is William Richard Shorten.
Chick Shorten's birth name is Charles Henry Shorten.
Patricia Shorten's birth name is Patricia Shelley Shorten.
The verb of short is shorten. As in "to shorten something".
Chick Shorten is 6'.
I had to shorten my presentation to fit within the time limit.
Lee Shorten is 5' 9".
Bill Shorten is 5' 10".
Bill Shorten goes by Billy.