Many sports have a lot of opportunities and different systems of betting. Even if you choose the same game, it could have different systems.Everything depends on what kind of game you choose.
Action – The action is based only on betting activity. Since betting on sports is illegal in many places, you can’t always look on your local bookie. You just wonder when the action starts.
Handicap – When we say this word ” handicap” we reffer to a team, to give her an advantaged point.
Handle – The handle represents the sum of money that you put on bets.
Sportsbook – an establishment that takes bets. Most of people call it “a book”.
Juice – juice is the percentage taken by people as a profit. Bookies call it the vig, the abreviation for vigorish. 
The spread – it is used in high scores from sports as football and basketball. practically it is a handicap . The spread gives some advantages for team, a few points.