That first is the primary usage. Usually there is some way to tell a counterfeit from the real thing, but one can theoretically make a counterfeit that’s indistinguishable from the original. I have only rarely heard it in the sense of “to deceive”.
That first is the primary usage. Usually there is some way to tell a counterfeit from the real thing, but one can theoretically make a counterfeit that’s indistinguishable from the original. I have only rarely heard it in the sense of “to deceive”.