Real Dictionary

audit
verb: When an accountant audits an organization's accounts, he or she examines the accounts officially in order to make sure that they have been done correctly.

audit in Accounting 1
noun: An audit is an inspection of business accounts that is carried out by an accountant in order to make sure that they are correct.

audit in Accounting 2
verb: When an accountant audits business accounts, he or she examines them officially in order to make sure that they are correct.

audit in American English
a formal, often periodic examination and checking of accounts or financial records to verify their correctness
to examine and check (accounts, claims, etc.)
intransitive verb: to examine and verify an account or accounts by reference to vouchers
noun: an official examination and verification of accounts and records, esp. of financial accounts
transitive verb: to make an audit of; examine (accounts, records, etc.) for purposes of verification

audit in British English
noun: an inspection, correction, and verification of business accounts, conducted by an independent qualified accountant
verb: to inspect, correct, and certify (accounts, etc)