From Longman Business Dictionarycash accountˈcash acˌcount1[countable]ACCOUNTING in a set of accounts, the account that records details of all amounts paid or received in cash2[countable]ACCOUNTING in arrangements for payment by customers, an account that is settled quickly in cash, rather than one which is paid later or in several payments3BANKING [countable] another name for a CHECKING ACCOUNT, CHEQUE ACCOUNT, or CURRENT ACCOUNT → account