voucherとは何ですか?A piece of substantiating evidence; a proof.A written record of expenditure, disbursement, or completed transaction.A written authorization or certificate, especially one exchangeable for cash or representing a credit against future expenditures.To substantiate or authenticate with evidence.To prepare a voucher for: properly vouchering each transaction. To issue a voucher to: a company that vouchers employees when the payroll cannot be met.