What does current balance mean?

According to SunTrust Bank, the current balance represents the actual amount of money in an account on a given day. SunTrust Bank notes that money related to non-finalized transactions is not reflected in the current balance.

At both SunTrust Bank and Santander Bank, all transactions, including cash deposits at a branch, cash withdrawals from an ATM, debit card purchases and any holds, only affect the available balance during a particular banking day, while the current balance remains unchanged. At SunTrust Bank, checks are processed nightly and do not affect the available balance, but at Santander Bank, check holds explicitly affect the available balance.