Perhaps you mean our internal string sets defined for each 
language, and compiled into the executable copy of AbiWord.
For each language we support, we include a table of translated
dialog, message, menu, and toolbar strings.  By editing your
profile (~/.AbiSuite/AbiWord.Profile on Unix), you can set
your MenuLabelSet, StringSet, ToolbarLabelSet to use any
supported language.  A default profile might look like:
<AbiPreferences app="AbiWord" ver="1.0">
	<Select
		scheme="_builtin_"
		autosaveprefs="1" />
	<Scheme
		name="_builtin_"
		AutoSpellCheck="1"
		KeyBindings="default"
		MenuLabelSet="EnUS"
		MenuLayouts="Main"
		RulerUnits="in"
		SpellCheckDirectory="dictionary"
		SpellCheckWordList="american.hash"
		StringSet="EnUS"
		StringSetDirectory="AbiWord/strings"
		ToolbarAppearance="icon"
		ToolbarLabelSet="EnUS"
		ToolbarLayouts="FileEditOps FormatOps"
		UnixFontPath="fonts"
		/>
	<Recent
		max="4"
		/>
</AbiPreferences>
... you could enable Danish strings by changing the file
to resemble something like the following:
<AbiPreferences app="AbiWord" ver="1.0">
	<Select
		scheme="mycustom"
		autosaveprefs="1" />
	<Scheme
		name="_builtin_"
		AutoSpellCheck="1"
		KeyBindings="default"
		MenuLabelSet="EnUS"
		MenuLayouts="Main"
		RulerUnits="in"
		SpellCheckDirectory="dictionary"
		SpellCheckWordList="american.hash"
		StringSet="EnUS"
		StringSetDirectory="AbiWord/strings"
		ToolbarAppearance="icon"
		ToolbarLabelSet="EnUS"
		ToolbarLayouts="FileEditOps FormatOps"
		UnixFontPath="fonts"
		/>
	<Scheme
		name="custom"
		MenuLabelSet="DaDK"
		StringSet="DaDK"
		ToolbarLabelSet="DaDK"
		/>
	<Recent
		max="4"
		/>
</AbiPreferences>
Notice how I had to change the referred scheme at the top and
I then created a new scheme at the bottom with any overriding
preferences.
We will eventually have a user-interface (in the form of a
preferences dialog) in the application, so that editing
this file manually will not be necessary.
If you're wondering how to use our "strings" capabilities to 
translate AbiWord to a new language, reply for more information.
-- Shaw Terwilliger