From Longman Business Dictionarycaution moneyˈcaution ˌmoney British EnglishCOMMERCE1an amount of money left with a person or organization to pay for damage that might be done or for some other thing that might cost them moneySYNDEPOSIT2money paid by someone who has a contract with someone else, to make certain that they do what the contract says they must doSYNDEPOSIT3money paid by someone who is about to buy something that is expensive and complicated to buy, for example a house, to prove that they intend to complete the dealSYNDEPOSIT → money