A check is a type of financial document used to make payments. It is typically written by the payer and made payable to the payee. The term 'A Check' can refer to both the physical document itself, as well as the act of writing it. The crossword solutions READD (5 letters) and STUB (4 letters) refer to two parts of a check. READD stands for 'Remittance Advice Enclosed Document Detail, ' which is a document that accompanies a check and provides details about the payment. STUB stands for 'Statement of Transaction Under Batch, ' which is a record of the check transaction that is kept by the payer.