Billiards terminology

2. The initial action of any game of billiards
3. A shot designed to be intentionally defensive, and to make the opponent's following shot harder
5. Stick used to strike ball into object balls
6. Tip of cue that has not been properly maintained, will result in miscues
9. An aiming technique done by imagining a contact point
10. The initial formation of the object balls, or the item used to make the formation
14. Inside walls of a pocket
15. A series of successful shots
16. The padding on the rails
17. White markers on top of the rails of the table
19. A table which has no object balls potted yet
20. Verb, to sink a ball into a pocket

1. Position of the cue ball. Can be 'Good' or 'Bad'
4. A singular game of billiards, from the rack to the game end
5. Striking an object ball off of a non object ball into a pocket
7. Generally pocketing the cue ball or failing to hit the desired ball will result in this
8. Used to move the ball backwards
11. Striking one object ball off of another to sink the second
12. A complete sequence of shots never allowing the opponent to have a turn
13. The holes where object balls are sunk
18. Stickers on the table's surface to determine racking position