Rack: a special tray that is meant for chips.
Rail: the rim on a poker table, usually wood.
Railbird: a player who hangs around a lot looking at the games and is waiting to jump into the action.
Raise: to add money into the pot.
Rake: the chips that are taken by the house at the beginning of every hand.
Rank: the value of the different hands.
Rap: when a player knocks on the table to say that they have checked.
Ratholing: when a player takes chips off the table.
Razz: in 7 card stud when the lowest hand wins the pot.
Reading: when players try to see any signs from other players.
Rebuy: if a player buys chips for a second time in a tournament.
Re-raise: when a raise is raised.
Ring Game: a game that is not a tournament.
River: when the last card is dealt.
Rock: a player who is very consistent and does not play every hand.
Rounders: players that form a conspiracy together.
Royal Flush: the highest straight possible, A,K,Q,J and 10 of the same suit.
Rush: a winning streak.