To counterfeit something is to make a copy of it that is not authentic. It's often done to make money, to deceive people, or to damage the reputation of someone else.
The company is counterfeiting the product, which is why it's so dangerous.
The politician is counterfeiting the votes, which is why he's winning the election.
verb
To falsely produce what appears to be official or valid; to produce a forged copy of.
verb
To produce a faithful copy of.
verb
To feign; to mimic.
verb
(usually "be counterfeited") Of a turn or river card, to invalidate a player's hand by making a better hand on the board.
noun
The act of one who counterfeits.
1
It was hidden in the counterfeit bills.
2
Counterfeit copies of the album exist.
3
The apparent efficiency of the Dobbs was counterfeit.
4
Adulterated and counterfeit drugs are a problem in Nigeria.
5
Counterfeit copies of the album exist also.
6
The intent of the new design was to deter counterfeiting.
7
This is not the counterfeiting page or the copyright infringement page.
8
It shows the beginnings of a counterfeit Christianity in the first century.
9
Chuck believes the crate contains the counterfeit plates.
10
Many of the counterfeit letters were sold in Canada and Britain.