Betting terms in the poker

In a poker tournament a player calls a bet by keeping exact amount of money that the previous player kept. If a player calls 2$ and if the next player wants to call the previous player then he has to bet with the same amount that the previous player has called. A player can fold his hand by keeping his cards on the table. He has to surrender his cards to the dealer until the round completes. A player can raise his previous bet by keeping double the previous bet. A player can pass his turn without betting, if he is the first player to bet. This is known as Check.