Lex Scripta: Legal Dictionaries - General — Australian site with links to legal dictionaries and other online resources.
Legal Explanations - Free legal resources in plain English — UK legal dictionary in plain English.
Legal Dictionary | Law.com — US legal dictionary.
Duhaime's Legal Dictionary — Canadian legal dictionary provided free by lawyer Lloyd Duhaime.
Divorce Source: Online Divorce Dictionary — US divorce dictionary.
Court Service Legal Glossary — UK court service.
Clickdocs Legal Glossary — UK legal glossary.