Dictionaries

1. Cambridge Dictionaries Online
2. The Free Dictionary
3. Bab-la
4. Bab-la Verbs
5. Macmillan
6. Linguee
7. Oxford Dictionary
8. WordReference
9. Visual Merriam-webster
10. Infopedia
11. HowJSay
12. Dictionary.com
13. Phrasal Verbs Dictionary - UE English 
14. BNC - British National Corpus 
15. Dictionarist (ótimo para Phrasal Verbs) 
16. Longman