Difine crossed cheqaue

If you mean a crossed cheque - it is a document which allows the person stated on the face of the document to pay a stated money on the bank for the purpose that it is intended. Crossing a cheque means to be specific on the instruction on the means of its redemption or deposit. For example, it is common to stipulate that it is to be directly given to the account in the bank as a deposit and not to be cashed over the counter.