The term 'CERTAIN WAGER' can be broken down into two crossword solutions: OVER (4 letters) and CERTAIN (7 letters). A wager is a bet or gamble, usually involving money, that is made between two or more parties. An OVER wager is a type of wager in which the bettor predicts that the total score of two teams will be higher than a CERTAIN number set by the bookmaker. A CERTAIN wager is a bet in which the bettor predicts that a CERTAIN outcome will occur.