1. past tense and past participle of effect; brought about or caused to happen
Usage: often confused with ‘affected’

Examples

• The new manager effected significant changes in company policy.
• The peace treaty effected an end to the long conflict.
• The reforms were effected gradually over several years.
• The medication effected a complete recovery.
• The CEO effected a merger between the two companies.
• The new law effected important improvements in workplace safety.