a situation in which someone is tricked into doing something or is made to seem guilty of something they did not do: When drugs were found in her luggage, she claimed it was a set-up.

Has been set up or has been setup?

Both words have different meanings and different functions. Setup is a noun and means the way in which something is arranged. Set up is a verb and refers to the action of putting things in order or arranging them.

Have been set up meaning?

If you are set up by someone, they make it seem that you have done something wrong when you have not. [informal] He claimed yesterday that he had been set up after drugs were discovered at his home.