What does y2 mean in cubing?

Related questions

1. Is solving a Rubik's Cube hard?
2. What is PLL in cubing?
3. Who created CFOP?
4. When was the first Rubiks Cube Solved?
5. How long does it take the average person to solve a Rubik's Cube?
6. How many turns does it take to solve a Rubik's Cube?
7. How long did it take Erno Rubik to solve the Rubik's Cube?
8. What is the f2l method?
9. How long would it take to solve a Rubik's Cube randomly?
10. Who invented CFOP?

Tags

1. #corresponding
2. #rotation
3. #lowercase
4. #bottom
5. #double
6. #clockwise
7. #letter
8. #marked
9. #layers
10. #means
11. #turns
12. #example