title: Why can't I declare a variable like "newVariable" in Obj-C?
body: <p>Error I got</p>
  
  <pre><code>error: property's synthesized getter follows Cocoa naming convention for returning 'owned' objects
  /Users/.../ViewController.h:12:40: 
  
  note: property declared here
  @property (nonatomic, retain)NSString *newString;
  </code></pre>
  
  <p>why can't I use <strong>new</strong> in the variable name at the beginning? (like <code>newString</code>)</p>