Synopsis:
   return [<arguments>]

Description:
   Return ends processing of a block such as an alias, scripted function,
   or an on hook, optionally giving it a return value.

Examples:
   alias square return ${[$0]*[$0]}
   
   eval echo $square(5)                      /* returns 25 */

See Also:
   alias(5); break(5); continue(5); for(5); while(4) until