1. to correct or fix something that is wrong or inaccurate
2. to purify or refine a substance, especially alcohol, by repeated distillation
Usage: technical; chemistry

Examples

• The company promised to rectify the billing error immediately.
• We need to rectify this mistake before the report is submitted.
• The teacher helped students rectify their understanding of the concept.
• Management took steps to rectify the safety violations.
• The distillery rectifies the alcohol to achieve higher purity.
• Please rectify your records to reflect the correct address.