1. made a fake copy of something valuable in order to deceive people
Usage: past tense of counterfeit
2. pretended to have or feel something false
Usage: past tense of counterfeit

Examples

• The criminals counterfeited hundred-dollar bills in their basement.
• She counterfeited surprise when she heard the news.
• The art dealer counterfeited famous paintings and sold them to collectors.
• He counterfeited concern for his rival’s injury.
• The company counterfeited designer handbags and sold them online.
• The spy counterfeited loyalty to gain access to classified information.