Formal, written acknowledgment that something of value has been received. (source: http://www.businessdictionary.com/definition/receipt.html#ixzz29eZGKp8T)

Additional remuneration included in the regular wage.

Action of arranging something to take place at a time later than that first scheduled.

A payment on account is a payment made in partial payment of a bill which has not yet been received. (source: http://forum.wordreference.com/showthread.php?t=869136&langid=24)

Instructions to transfer funds sent via paper and/or electronic means. (source: http://en.wikipedia.org/wiki/Payment_order)

A payment made for goods when they are ordered and before they are delivered. (source: http://www.qfinance.com/dictionary/payment-in-advance)

A series of payments that a buyer makes instead of a lump sum to compensate the seller. Installment payments often, but do not always, include

Payment made in the form of goods and services, rather than cash. (source: http://www.investorwords.com/3637/payment_in_kind.html#ixzz2SdBkI8X1)

A debt which has been incurred and will be paid back at some point in the future. (source: http://www.investorwords.com/1365/deferred_payment.html)

The date on which a payment is due.