As I said, the best is typical dictionary, and I really recommend the best (in my opinion) online translator:



Of course that translator has some errors, but not much like others, and that's not all, on that site you can translate from polish to english, from english to polish, polish to russian, russian to polish, polish to german and on the contrary. So I really recommend that great translator, try it and enjoy, that's free:))

Greetings:)