directories structure:

.
|-- Word.pm
|-- WordExposed
|   |-- Languages.pm
|   `-- LanguagesPrivate
|       |-- French.pm
|       `-- Italian.pm

files:

# foo.pl
use strict;
use warnings;
use lib ('/path_to_Word_pm');
use Word;
my $word = Word->new();
$word->set('apple','it');



# Word.pm
package Word;
use strict;

use Class::Struct;
use WordExposed::Languages;

struct Word => {
    english      => '$',
    language     => '$',
    translation  => '$',
};

sub set {
    my $self = shift();
    my $english = shift();
    my $language = shift();
    $self->english($english);
    $self->language($language);
    $self->_translate();
}
1;

##</code><code>##

# Languages.pm
package WordExposed::Languages;

our @ISA       = qw(Exporter);
our @EXPORT    = qw( _translate );
our @EXPORT_OK = qw();

sub _translate {
    my $self = shift();
    if ($self->language eq 'fr') {
        $self->_traduction();
    } elsif ($self->language eq 'it') {
        $self->_traduzione();
    }
}
1;

# French.pm
package WordExposed::LanguagesPrivate::French;
our @ISA       = qw(Exporter);
our @EXPORT    = qw( _traducion );
our @EXPORT_OK = qw();
sub _traducion {
    my $self = shift();
}
1;

# Italian.pm
package WordExposed::LanguagesPrivate::Italian;
our @ISA       = qw(Exporter);
our @EXPORT    = qw( _traduzione );
our @EXPORT_OK = qw();
sub _traduzione {
    my $self = shift();
}
1;