Deceptive or false appearance; that which misleads the eye or the mind.
An argument, or apparent argument, which professes to be decisive of the matter at issue, while in reality it is not; a specious argument.
That which comes from one's imagination.
A fantastical design.
The drug gamma-hydroxybutyric acid.
The literary genre generally dealing with themes of magic and the supernatural, imaginary worlds and creatures, etc.
To imagine; to conceive mentally.
To fantasize (about).