There are two free Spanish-English dictionaries: our own dictionary and one from Collins. Each has its own strengths. Combined, they are unbeatable.
French and Italian Dictionaries
WordReference has two of its own dictionaries plus those of Collins. The French dictionary has over 250,000 translations and the Italian dictionary has nearly 200,000. These dictionaries continue to grow and improve as well. If you don't find what you are looking for in any of the dictionaries, search or ask in the forums.
The WordReference language forum is the largest repository of knowledge and advice about the English language, as well as a number of other languages. If you have a question about language usage, first search the hundreds of thousands of previous questions. If you still are unsure, then you can ask the question yourself. Native speakers from around the world will be happy to assist you.