audit

noun

• an official inspection of an organization’s accounts, typically by an independent body: audits can’t be expected to detect every fraud
• a systematic review or assessment of something:a complete audit of flora and fauna at the site

verb (audits, auditing, audited)

• 1conduct an official financial inspection of (a company or its accounts):unlimited companies must also have their accounts audited
• conduct a systematic review of:a method of auditing obstetric and neonatal care

• 2North American attend (a class) informally, without working for credit: he made use of the knowledge gleaned from economics classes he audited