credit order vs bill-me order

credit order and bill-me order both are nouns.

Word	Noun	Adjective	Verb	Adverb
credit order	Yes	No	No	No
bill-me order	Yes	No	No	No

As nouns, credit order and bill-me order are synonyms defined as:

credit order and bill-me order: an order that is received without payment; requires billing at a later date

credit order (noun)	bill-me order (noun)
an order that is received without payment; requires billing at a later date	an order that is received without payment; requires billing at a later date