Are you looking for an English - Arabic dictionary? Here is, Araby the best Arabic dictionary on the Mac App Store comes with great features :
• English to Arabic and Arabic to English dictionaries with over 200,000 definitions.
• Offline pronunciation for both Arabic and English languages.
• American and British accent voice
• Bookmark and search history.
• Automatic word suggestion.
• Quick search using Services menu.
• Support quick search with PopClip extension.
