Here’s an example of the current file format structure in all of its glory:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<dictionarydatabase>
    <notepad></notepad>
    <todoitems>
        <todoitem>yurt</todoitem>
        <todoitem>cabbage soup</todoitem>
        <todoitem>horseshoe</todoitem>
        <todoitem>Glorious Soviet General's Symbolic Account on the Popular First-Person Shooter Game</todoitem>
    </todoitems>
    <wordclasses>
        <class name="Noun" abbreviation="n"/>
        <class name="Verb" abbreviation="v"/>
        <class name="Interjection" abbreviation="interj"/>
    </wordclasses>
    <definitions language="Pavonian">
        <entry class="Noun" flagged="true">
            <term>bluznerg</term>
            <definition>Hammond organ</definition>
        </entry>
        <entry class="Verb">
            <term>omggponiesž</term>
            <definition>
            to post to a website (lit. to surprise people with retarded humour)
            </definition>
        </entry>
        <entry class="Interjection">
            <term>verzvorgfsžy</term>
            <definition>
            goodbye (lit. may the eagles carry you where the sun doesn't shine)
            </definition>
        </entry>
    </definitions>
    <definitions language="English">
        <entry class="Noun" flagged="true">
            <term>Hammond organ</term>
            <definition>bluznerg</definition>
        </entry>
        <entry class="Interjection">
            <term>goodbye</term>
            <definition>verzvorgfsžy</definition>
        </entry>
        <entry class="Noun" flagged="true">
            <term>organ</term>
            <definition>bluznerg (Hammond organ)</definition>
        </entry>
        <entry class="Verb">
            <term>post</term>
            <definition>
            omggponiesž (to post to a website, to surprise people with retarded humour)
            </definition>
        </entry>
        <entry class="Verb">
            <term>surprise</term>
            <definition>
            omggponiesž (to post to a website, to surprise people with retarded humour)
            </definition>
        </entry>
    </definitions>
</dictionarydatabase>

Noteworthy points:

• Word classes are defined in the <wordclasses> section. All of the word classes are identified by their “name” attribute, which should be unique. Word classes are then used in “class” attribute in <entry> tag.
  
• “class” and “flagged” attributes in entries are optional.