It is unknown why the Yellow Pages listing for 'Cruise Division American Express' shortens the listing by two letters. However, one might theorize that reason the listing is being shortened due to space parameters set by the web team.
Telomeres
Yes. You can shorten you are to you're. In grammar, this is called a contraction. It is a common mistake, however, that people write "your" rather than "you're" when trying to express "you are". Other contractions include "don't" for "do not", "can't" for "cannot", "it's" for "it is", and so on.
The breed is The American Pit Bull Terrier. Some people shorten the breed's name but it is the same thing.
you shorten it by etc.
You don't shorten 'it has'.
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.
Chick Shorten is 6'.
Lee Shorten is 5' 9".
I had to shorten my presentation to fit within the time limit.