gettext

Hi, I'm using gettext to add i18n to a website. As "msgid" for the single messages, I'm not using the original text to be translated, but a shorter string that have no relation with the actual text. For example, if the text to be translated is "Hello world" I write "print(gettext("HW"))" in PHP and put #: hello.php 2 msgid "HW" msgstr "Hello world" in the ".po" file. This way, if necessary, "HW" will be diplayed as default string, which of course is not good. What could be in this case the best way to manage default strings? Thanks