Wagering and betting is the same thing. On MoheganSunCasino.com you may see the term 'wagering requirements' in bonuses, promotions and other marketing material. A wagering requirement is the amount of betting or wagering that you are required to fulfill in order for the bonus money to convert to cash. For example $20 in bonus funds with a 1x wagering requirement would require you to wager $20 before the bonus money is converted to real money.
Please be sure to carefully read all terms and conditions which apply to bonus money.