How many languages are there in the game?

24 i belive unless on the roleplay server then its 25

25:

1. Common Tongue
2. Barbarian
3. Erudian
4. Elvish
5. Dark Elvish
6. Dwarvish
7. Troll
8. Ogre
9. Gnomish
10. Halfling
11. Thieves Cant
12. Old Erudian
13. Elder Elvish
14. Froglok
15. Goblin
16. Gnoll
17. Combine Tongue
18. Elder Tier'Dal
19. Lizardman
20. Orcish
21. Faerie
22. Dragon
23. Elder Dragon
24. Dark Speech
25. Vah Shir

Thanks for the info. Where do you learn the thieves chant though?

From Rogues

thanks again for the info