CONTRACTION ActioN ...... :)

A contraction is a word or phrase that has been shortened by dropping one or more letters.
In writing, an apostrophe takes the place of the missing letters.

http://www.quia.com/cc/412.html

http://www.primarygames.com/contractions/question1.htm
http://english-zone.com/spelling/cont-01.html
http://a4esl.org/q/f/z/zz45fck.htm
http://www.quia.com/hm/44478.html