The "frami" dictionary contains the complete word list of Björn Jacke's "igerman98" and additional numerous supplements by Franz Michael Baumann according to the reform of 2006. This extension includes German thesaurus and hyphenation. Localization de-DE only.

This extension will add Italian dictionaries (spell checking, hyphenation, thesaurus) with Latin dictionaries (spell checking, hyphenation) using resources of OpenOffice.org - deutschsprachiges Projekt and Progetto Linguistico Italiano.

This extension will add German old spell dictionary and old spell hyphenation patterns using the resources of OpenOffice.org - deutschsprachiges Projekt. An oldspell thesaurus is not available.
Diese Erweiterung fügt Wörterbücher nach den alten Regeln der deutschen Rechtschreibung und Trennung hinzu. Ein Thesaurus ist nicht verfügbar.

This extension will add spellchecking dictionaries and hyphenation for Croatian (locales: hr-HR).
The extension is build from other ressources, means I do only "publish" existing dictionaries but not maintain them.
These are the "official" sources for the dicitionaires that have been shipped with OOo 2.x.

This extension will add German dictionaries (spell checking, hyphenation, thesaurus) using the "official" resources of OpenOffice.org - deutschsprachiges Projekt. Localization: de-DE only.

Installing this extension will provide three packages essential for creating documents in Irish (Gaelic):

• GaelSpell. The best Irish spell checker, freely available since 2000.
• Líonra Séimeantach na Gaeilge. The first full-scale Irish language thesaurus.

Kontrola rastnivîsa kurdî (kurmancî) ya OpenOffice.org.
Di OpenOffice.org 3 de bi riya Amûr > Rêveberê Pêvekan > Lêzêdekirin saz bike.
Agahî û alîkarî di http://pckurd.net û http://ferheng.org de hene.

This extension contains the Kurdish (Kurmanji) spellchecker for OpenOffice.org.

Spelling Dictionary for Khmer (Cambodian) language.

A dictionary to look up definitions in. The definitions come from definr.com.
Google Code Page

Now works with 3.0

This extension providers spellchecking dictionary and thesaurus for Ukrainian language. It's based on spell-uk project.