I really like this "inverted" regex method. As a sub, it can be brought down to 105 characters:

sub n{
$n=shift;@l=('','',qw([abc] [def] [ghi] [jkl] [mno] [pqrs] [tuv] [wxyz
+]));$n=~s/./$l[$&]/ge;grep/^$n$/,@_
}
[download]

   MeowChow                                   
               s aamecha.s a..a\u$&owag.print