Not real; unreal, imaginary.
Not real; not of the real numbers.
A nonreal number.
Not really what it is represented as being; imaginary, feigned.
To claim, to allege, especially when falsely or as a form of deliberate deception.
To feign, affect (a state, quality, etc.).
To lay claim to (an ability, status, advantage, etc.). (originally used without to)
To make oneself appear to do or be doing something; to engage in make-believe.
the act of engaging in pretend play.