How many words do you need to know to be fluent in a language?

Related questions

1. How many Chinese characters do you need to know to be fluent?
2. Is Rosetta Stone good for Chinese?
3. Does HSK expire?
4. What is hsk1?
5. Why should I learn Mandarin?
6. How long does it take to be fluent in Mandarin?
7. What is a good HSK 5 score?
8. What is the best Chinese to learn?
9. How long does it take to learn Spanish fluently?
10. What does HSK level mean?

Tags

1. #detail
2. #furthermore
3. #requisite
4. #vocabulary
5. #about
6. #understand
7. #nearly
8. #fluent
9. #talking
10. #around
11. #enough
12. #level
13. #native
14. #every
15. #unfamiliar
16. #words
17. #languages
18. #context
19. #recognize
20. #utterance
21. #reached
22. #topic
23. #usually