I've made this application to search, view and edit the DF dictionaries to see translations or add new words to the game. I mostly began this project because I wanted to start composing songs in Toadese and this seemed a lot more convenient to use than Notepad++.

Changelog 0.4.4:

• Bug fixed: Toadese reverse lookup was case sensitive.
• Bug fixed: Certain words (with spaces) were not appearing correctly.
• Bug fixed: Duplicate lemmas were unselectable.
  
• Improvement: Change background image (again). That cloud looks "derpy".
• Improvement: You can now type "harvesters" or "harvesting" and the program correctly recognises the root word.
  
• Note: Added DeviantArt link to about page.

Changelog 0.4:

• Feature: Added more interface graphics.
• Feature: Added Toadese reverse lookup (finally). Works mostly, but still experimental.
  
• Improvement: Refined backup system slightly. Remember to back up anyway when you start out.
  
• Note: No full masterwork support yet. Getting there!

Changelog 0.3:

• Feature: Add new words to your DF world! Preliminary !EXPERIMENTS! look good so far.
• Feature: Added "Backup Language Files" and "Revert to backups" buttons.
• Feature: Spruced things up a bit (I am easily distracted and just discovered GIMP).
• Feature: Partial game word editing (create or overwrite translations, (only) add symbol tags to words). More coming!
• Feature: Translations (i.e. the Dwarf word) can be overwritten (so make sure to backup your language files)!
  
• Improvement: Filtering significantly faster.
  
• Bug fixed: Prefixes like "after" and "un" weren't showing up properly.
• Bug fixed: Some other words weren't showing up or displaying correctly with POS filters on.
• Note: You must generate a new world for the new words to show up and work, unless someone can think of a workaround. Doesn't seem to work for me.
• Note: All new nouns, verbs and adjective are given all the possible language tokens, so there might be some weird
  name possibilities. I'll add customisation for this later if requested.
• Note: Not all Masterwork words can be filtered yet, but should show up under "All".

Changelog 0.2:

• Look up words in English with results in Toadese (the name I chose to refer to Toady's language)
• Vanilla and Masterwork support
• Some factorisation and form redesign.
• Added community language propositions support with specific language support.
• Added language variants support (e.g. formal, informal, etc.).
• Added advanced adjective (lemma, comparative,superlative), noun (singular, plural) and verb (active, passive and reflexive) info.
• Added ad hoc word construction (i.e. noun AS_ADJECTIVE etc.).

Planned Features:

• Full Masterwork support for word creation on the way, Meph!
• Complete lemma editing (in language_words.txt file), complete symbol tag editing (e.g. removing tags).
• Add proposition vocabulary suggestions like propositions etc. to word list(not for in-game use).
• Add ablaut support (i.e. Loam-like, see relevant discussion on forum page 1).
• Add AS_VERB ad hoc construction for nouns and adjectives (on request only at this point).
• Ability to add new languages.
• Sentence translator.
• Pronunciation guide.
• Whatever, please send suggestions!

RELEVANT THREAD: http://www.bay12forums.com/smf/index.php?topic=136098.0
INSTALL INSTRUCTIONS: Place anywhere. Set the Objects folder. A cfg.ini file will be made where you run it, but that's it.
INCLUDED FILES: Toadese Language Utility.exe, cfg.ini (generated),props.txt,TLU_Readme.txt

Simon