To reconcile a check register means to match all the entries in the register with the statement received from the bank and correct any discrepancies.

Check Register

A record of all transactions in a checking account, including checks written, deposits made, fees paid, ATM withdrawals, and so on.

Bank Statement

A statement that includes all transactions that have occurred for a period of approximately one month.

Discrepancies

Differences or inconsistencies found within related facts, figures, or statements, often requiring further investigation or adjustment.