transactions (sales and purchases) having the objective of supplying commodities (goods and services)

the deliberate act of failing to pay money

give money, usually in exchange for goods or services

cancel or discharge a debt

discharge or settle

payment of an obligation in a series of installments or transfers

payment (usually by doctors or lawyers) of part of the fee in return for the referral

the act of paying too much

payment in advance

payment for the release of someone