Popular Arabic Dictionaries
1. A Dictionary of Modern Written Arabic by Hans Weir.
Not recommended for beginners but more for use by intermediate and advanced students of Arabic.
2. Al Mawrid Al Waseet Dr Rohi Al Baalbaki.Available as Arabic to English or English to Arabic.
For all levels but mainly beginners and intermediate.
3. The Concise and the Essential Oxford English to Arabic, Arabic to English dictionaries. Printed by Oxford University Press.