jVLT

jVLT is a Java tool that's useful for learning vocabulary in virtually any language. The application lets you store a word along with its various meanings, pronunciation, and possible lessons in which it could appear. You can also save example sentences and link them to existing words in the vocabulary section. When you select a word in the main area, you'll see not just its translation but also the linked sentence. jVLT is a flashcard system to help you learn and practice new words that you've saved.