What does 0 mean on guitar tabs?

Related questions

1. What was the last song the Beatles ever recorded?
2. Was let it be recorded before Abbey Road?
3. What is the easiest chord to play on a guitar?
4. Who played guitar in Blackbird?
5. What does the 7 mean in a7 chord?
6. Did George Harrison sing Here Comes the Sun?
7. What does P mean in ukulele tabs?
8. What is the last song on Abbey Road?
9. Where do you put a capo for half step down?
10. What key is e7 in?

Tags

1. #lesson
2. #string
3. #frets
4. #represent
5. #notice
6. #thing
7. #standard
8. #means
9. #beginners
10. #numbers
11. #tuning
12. #second
13. #guitar
14. #stick