bill of exchange vs order of payment

bill of exchange and order of payment both are nouns.

Word	Noun	Adjective	Verb	Adverb
bill of exchange	Yes	No	No	No
order of payment	Yes	No	No	No

As nouns, bill of exchange and order of payment are synonyms defined as:

bill of exchange and order of payment: a document ordering the payment of money; drawn by one person or bank on another

Other synonyms of bill of exchange include draft.

bill of exchange (noun)	order of payment (noun)
a document ordering the payment of money; drawn by one person or bank on another	a document ordering the payment of money; drawn by one person or bank on another