double entry vs double-entry bookkeeping

double entry and double-entry bookkeeping both are nouns.

Word	Noun	Adjective	Verb	Adverb
double entry	Yes	No	No	No
double-entry bookkeeping	Yes	No	No	No

As nouns, double entry and double-entry bookkeeping are synonyms defined as:

double entry and double-entry bookkeeping: bookkeeper debits the transaction to one account and credits it to another

double entry (noun)	double-entry bookkeeping (noun)
bookkeeper debits the transaction to one account and credits it to another	bookkeeper debits the transaction to one account and credits it to another