debit balance vs negative balance

debit balance and negative balance both are nouns.

Word	Noun	Adjective	Verb	Adverb
debit balance	Yes	No	No	No
negative balance	Yes	No	No	No

As nouns, debit balance and negative balance are synonyms defined as:

debit balance and negative balance: an account balance in which debits exceed credits, and the customer owes the bank money.

debit balance (noun)	negative balance (noun)
an account balance in which debits exceed credits, and the customer owes the bank money.	an account balance in which debits exceed credits, and the customer owes the bank money.