That which is falsely or delusively believed or propagated; false belief; error in belief.
A false belief that is resistant to confrontation with actual facts.
A fixed, false belief, that will not change, despite evidence to the contrary.
The state of being deluded or misled, or process of deluding somebody.
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).