To counterfeit means to imitate something. Counterfeit products are fake replicas of the real product. Counterfeit products are often produced with the intent to take advantage of the superior value of the imitated product. The word counterfeit frequently describes both the forgeries of currency and documents, as well as the imitations of works of art, toys, clothing, software, pharmaceuticals, watches, electronics, handbags and shoes. Counterfeit products have a fake company logos and brands. In the case of goods, it results in patent infringement or trademark infringement. Illegal drugs may also be counterfeit, e.g. by passing off baking soda as cocaine, a scam which relies on the naivete of the buyer. Counterfeit consumer products have a reputation for being low quality.
The counterfeiting of money is usually attacked aggressively by governments. The counterfeiting of goods is condoned by some governments. Counterfeit money is the most popular product counterfeited.